Water quality atomic absorption spectrophotometric detection method and system for fiber processing

Abstract

The invention discloses a water quality atomic absorption spectrophotometric detection method and system for fiber processing, and relates to the technical field of water quality spectrum detection.The method comprises the following steps that water quality elements are permutated and combined to form element to-be-detected groups; measuring element standard curves of different water quality elements, and then measuring whether the water quality elements in the element to-be-measured group have a spectral interference phenomenon or not; analyzing an influence equation set among the water quality elements in the element to-be-detected group; solving the actual absorbance of the water quality element in the fiber processing water through the influence equation set, and determining the concentration of the water quality element according to the element standard curve; the method is used for solving the problem that the existing water quality spectrum detection technology is not comprehensive enough in spectrum interference phenomenon analysis in atomic absorption spectrophotometric detection, so that the determination result of the content and the concentration of the to-be-detected element is easy to have errors.

Description

Technical Field

[0001] The invention relates to the technical field of water quality spectrum detection, and in particular to a method and system for atomic absorption spectrophotometry detection of water quality for fiber processing. Background Art

[0002] Water quality spectral detection technology refers to a technology that uses the principles of spectroscopy to detect and analyze chemical components, pollutants, and microorganisms in water bodies. By measuring spectral characteristics such as absorption, scattering, and emission in water bodies, information about water quality, pollution levels, and the state of the water ecosystem can be obtained.

[0003] Existing water quality spectral detection technology usually uses atomic absorption spectroscopy to measure the concentration of different elements in a sample to evaluate the water quality level of the sample. In atomic absorption spectroscopy, the content of the element to be measured in the sample is mainly determined based on the absorption intensity of the ground state atoms of the element to be measured by its atomic resonance radiation, that is, the concentration of the element to be measured is obtained through absorbance analysis. However, in actual detection, due to the complex composition of water bodies, spectral interference may occur between different elements, resulting in inaccurate absorbance detection, and further resulting in errors in the calculation of the concentration of the element to be measured, which has a great impact on the evaluation of water quality. For example, in the publication No. CN1165934 The patent application of 12A discloses a food testing instrument and method for trace element analysis. The solution determines the content of trace elements in food by digesting the food into a mixture and then performing atomic absorption spectrophotometry. The mixture obtained after food digestion has complex components and contains a large amount of impurities. There may be spectral interference between different elements, and the solution does not eliminate the spectral interference phenomenon, resulting in inaccurate measurement results of trace elements. The existing water quality spectral detection technology also has the problem of insufficient analysis of spectral interference phenomena in atomic absorption spectrophotometry detection, resulting in errors in the measurement results of the content and concentration of the elements to be measured. Summary of the invention

[0004] The present invention aims to solve one of the technical problems in the prior art to at least a certain extent, by obtaining water quality elements contained in fiber processing water, arranging and combining the water quality elements to form an element test group, then performing atomic absorption spectroscopy test on the water quality elements in the element test group, determining element standard curves of different water quality elements, setting an impact analysis experimental group for the water quality elements in the element test group, analyzing whether there is spectral interference between two water quality elements through the impact analysis experimental group, and if there is spectral interference between the water quality elements, analyzing the impact equation group between the water quality elements in the element test group, and then solving the actual absorbance of the water quality elements in the fiber processing water through the impact equation group, and finally determining the concentration of the water quality elements according to the element standard curve, so as to solve the problem that the existing water quality spectral detection technology still has the problem that the analysis of spectral interference phenomenon in atomic absorption spectrophotometry detection is not comprehensive enough, resulting in errors in the determination results of the content and concentration of the elements to be tested.

[0005] To achieve the above objectives, in a first aspect, the present application provides a method for atomic absorption spectrophotometry detection of water quality for fiber processing, comprising the following steps: Obtain water quality elements contained in fiber processing water, and arrange and combine the water quality elements to form an element test group; Perform atomic absorption spectrometry test on the element test group, determine the element standard curves of different water quality elements, and then determine whether there is spectral interference phenomenon in the water quality elements in the element test group; If there is spectral interference between water quality elements, the influence equations between water quality elements in the element test group are analyzed; The actual absorbance of water quality elements in fiber processing water is solved by influencing the equation group and the concentration of water quality elements is determined according to the element standard curve.

[0006] Furthermore, obtaining water quality elements contained in the fiber processing water and arranging and combining the water quality elements to form an element test group includes the following sub-steps: Obtain water quality elements contained in fiber processing water; By means of permutations and combinations, water quality elements are grouped in pairs to obtain the element test groups; The element test group includes two water quality elements, and the water quality elements in different element test groups are not completely the same.

[0007] Further, performing atomic absorption spectroscopy test on the element test group, determining element standard curves of different water quality elements, and then determining whether there is spectral interference phenomenon of the water quality elements in the element test group includes the following sub-steps: Perform atomic absorption spectrometry tests on the water quality elements in the element test group and determine the element standard curves of different water quality elements; An impact analysis experimental group is set up for the water quality elements in the element test group, and the impact analysis experimental group is used to analyze whether there is spectral interference between the two water quality elements.

[0008] Furthermore, atomic absorption spectrometry is performed on the water quality elements in the element test group, and the element standard curves of different water quality elements are determined, including the following sub-steps: For any water quality element, a first quantity of element solution is set, wherein the element solution is a solution obtained by adding the water quality element to a reference solution at different element concentrations; The first number is represented by the symbol N1, the element solutions are numbered, and the first number is represented by the symbol F n Indicates, where n∈Z+ and n is the serial number of F, 1≤n≤N1, sets the first concentration, represented by the symbol ρ, F n The element concentration is set to n×ρ, represented by C n express; F was detected by atomic absorption spectrophotometry. n The absorbance is marked as ABS n ; C n For X axis, ABS n Establish a rectangular coordinate system for the Y axis, named the concentration-absorbance relationship diagram, and set F n ABS n According to the corresponding C n Enter the concentration-absorbance relationship graph; Linear regression is performed on the concentration-absorbance relationship diagram to obtain the element standard curve. All water quality elements are analyzed, and each water quality element corresponds to an element standard curve. The format of the element standard curve is AS=a×C+b, wherein AS is the absorbance, C is the element concentration, a is the slope of the element standard curve, and b is the intercept of the element standard curve.

[0009] Furthermore, an impact analysis experimental group is set for the water quality elements in the element test group, and analyzing whether there is a spectral interference phenomenon between two water quality elements through the impact analysis experimental group includes the following sub-steps: For any element test group, the two water quality elements are marked as the first element and the second element respectively, and their element solutions F n Also marked as QF n and PF n ; QF n Add PF1 to detect QF n The absorbance of the sample is labeled ASQ(n,1) and compared to ABS nIs it the same as ASQ(n,1)? If so, the output element has no influence signal; if not, the output element has influence signal; If the output element affects the signal, there is spectral interference between the two water quality elements in the marker element test group; If the output element has no influencing signal, there is no spectral interference between the two water quality elements in the marker element test group.

[0010] Furthermore, if there is spectral interference between water quality elements, the influence equation group between water quality elements in the element to be tested group includes the following sub-steps: When the output element affects the signal, QF n Add PF1 to the record and get ASQ(n,m), where m∈Z+, m represents the QF n Add PF1 to PF1 or add QF to PF1 n Repeat the process until m=N1. Then to PF n Repeat adding QF1 to obtain ASP(n,m) until m=N1; QF n ABS n Marked as ABQ n , PF n ABS n Marked as ABP n , calculate ASQ(n,m) / ABQ n , mark the result as TQ(n,m), calculate ASP(n,m) / ABP n , mark the calculation result as TP(n,m); A plane rectangular coordinate system is established with m×PF1 as the horizontal axis and TQ(n,m) as the vertical axis, named the first element influence trend diagram; a plane rectangular coordinate system is established with m×QF1 as the horizontal axis and TP(n,m) as the vertical axis, named the second element influence trend diagram; Perform linear regression on the first element influence trend graph and the second element influence trend graph respectively to obtain the first element influence trend equation and the second element influence trend equation, the first element influence trend equation format is Y1=c1×X1+d1, the second element influence trend equation format is Y2=C2×X2+d2, wherein Y1 is TQ(n,m), X1 is m×PF1, Y2 is TP(n,m), X2 is m×QF1, c1 is the slope of the first element influence trend equation, d1 is the intercept of the first element influence trend equation, c2 is the slope of the second element influence trend equation, and d2 is the intercept of the second element influence trend equation; The first element influence trend equation and the second element influence trend equation together constitute an influence equation group, namely .

[0011] Furthermore, solving the actual absorbance of water quality elements in fiber processing water by influencing the equation group and determining the concentration of water quality elements according to the element standard curve includes the following sub-steps: The actual absorbance of water quality elements in fiber processing water is solved by influencing the equations; Determine the concentration of water quality elements based on the element standard curve.

[0012] Furthermore, solving the actual absorbance of water quality elements in fiber processing water by influencing the equation group includes the following sub-steps: The actual absorbances of the first element and the second element with spectral interference linearity between each other are marked as H1 and H2, and the detected absorbances are marked as G1 and G2 respectively; Y1 represents the change trend of the absorbance of the first element affected by the second element at a certain concentration, and Y2 represents the change trend of the absorbance of the second element affected by the first element at a certain concentration. ; Substituting into the influence equations, we get , solve H1 and H2, and we get ; Among them, X1 represents m×PF1 in the first element influence trend equation, that is, the concentration of the second element, and X2 represents m×QF1 in the second element influence trend equation, that is, the concentration of the first element. The change is .

[0013] Furthermore, determining the concentration of water quality elements according to the element standard curve includes the following sub-steps: Substitute AS=H1 and AS=H2 into the corresponding element standard curves respectively. Since the element standard curve format is AS=a×C+b, the element standard curve corresponding to H1 is expressed as AS1=a1×C1+b1, and the element standard curve corresponding to H2 is expressed as AS2=a2×C2+b2; Substitute AS1=H1 and solve, and substitute AS2=H2 and solve, that is, , combined with get ; The obtained C1 and C2 are the actual concentrations of the first element and the second element with which there is spectral interference linearity.

[0014] In a second aspect, the present application provides an atomic absorption spectrophotometric detection system for water quality in fiber processing, comprising an element combination module, a spectrum test module, an impact analysis module, and an impact elimination module; the element combination module, the spectrum test module, and the impact elimination module are respectively connected to the impact analysis module data; The element combination module is used to obtain water quality elements contained in fiber processing water, and to arrange and combine the water quality elements to form an element test group; The spectrum test module is used to perform atomic absorption spectrum test on the element test group, determine the element standard curves of different water quality elements, and then determine whether there is spectrum interference phenomenon in the water quality elements in the element test group; The influence analysis module is used to analyze the influence equations between the water quality elements in the element to be tested group if there is spectral interference between the water quality elements; The influence elimination module is used to solve the actual absorbance of water quality elements in fiber processing water through the influence equation group and determine the concentration of water quality elements according to the element standard curve.

[0015] Beneficial effects of the present invention: The present invention obtains water quality elements contained in fiber processing water, arranges and combines the water quality elements to form an element test group, and then performs atomic absorption spectrometry test on the water quality elements in the element test group to determine the element standard curve of different water quality elements. The advantage is that the standard curve is used to calculate the concentration of the water quality elements according to their absorbance to evaluate the water quality level, thereby improving the accuracy and effectiveness of water quality detection; The present invention sets an influence analysis experimental group for the water quality elements in the element test group, analyzes whether there is spectral interference between two water quality elements through the influence analysis experimental group, and if there is spectral interference between the water quality elements, analyzes the influence equation group between the water quality elements in the element test group, and then solves the actual absorbance of the water quality elements in the fiber processing water through the influence equation group, and finally determines the concentration of the water quality elements according to the element standard curve. The advantage is that since the water composition in the fiber processing water is relatively complex and rich in various impurities, trace elements, metal ions and reagents, there may be spectral interference between different elements, resulting in deviations in the determination of their absorbances, and the influence analysis is used to determine which water quality elements in the fiber processing water have an influence, and then their influence equations are analyzed to correct the absorbance, and finally the correct concentration is calculated, thereby improving the accuracy and rationality of water quality detection of fiber processing water. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a functional block diagram of the system of the present invention; Figure 2 is the concentration-absorbance relationship diagram of the present invention; Figure 3The first element influence trend diagram of the present invention; Figure 4 The figure is a flow chart of the steps of the method of the present invention. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] Example 1, please refer to Figure 1 As shown, the present application provides an atomic absorption spectrophotometric detection system for water quality used in fiber processing, including an element combination module, a spectrum test module, an impact analysis module and an impact elimination module; the element combination module, the spectrum test module and the impact elimination module are respectively connected to the impact analysis module data; The element combination module is used to obtain the water quality elements contained in the fiber processing water, arrange and combine the water quality elements to form an element test group; The element combination module is configured with element combination strategies, which include: Obtain water quality elements contained in fiber processing water; By means of permutations and combinations, water quality elements are grouped in pairs to obtain the element test groups; The element test group includes two water quality elements, and the water quality elements in different element test groups are not completely the same; In actual applications, water quality elements in fiber processing water include but are not limited to metal ions such as iron, aluminum and chromium. There are also various elements such as detergent residues such as surfactants, dye residues and auxiliary agent residues. In this embodiment, only the three metal ions of iron, aluminum and chromium are used to illustrate the specific analysis process; in this embodiment, water quality elements include iron, aluminum and chromium, and three element test groups are obtained by arranging and combining them in pairs. The first element test group includes iron ions and aluminum ions, the second element test group includes aluminum ions and chromium ions, and the third element test group includes iron ions and chromium ions.

[0019] The spectrum test module is used to perform atomic absorption spectrum test on the element test group, determine the element standard curves of different water quality elements, and then determine whether there is spectrum interference phenomenon in the water quality elements in the element test group; the spectrum test module includes a standard curve determination unit and a spectrum interference analysis unit; The standard curve determination unit is used to perform atomic absorption spectrometry test on the water quality elements in the element test group and determine the element standard curves of different water quality elements; The standard curve determination unit is configured with a standard curve determination strategy, which includes: For any water quality element, a first quantity of element solution is set, where the element solution is a solution obtained by adding the water quality element to a reference solution at different element concentrations; The first number is represented by the symbol N1, the element solutions are numbered, and the first number is represented by the symbol F n Indicates, where n∈Z+ and n is the serial number of F, 1≤n≤N1, sets the first concentration, represented by the symbol ρ, F n The element concentration is set to n×ρ, represented by C n express; F was detected by atomic absorption spectrophotometry. n The absorbance is marked as ABS n ; See also Figure 2 As shown, C n For X axis, ABS n Establish a rectangular coordinate system for the Y axis, named the concentration-absorbance relationship diagram, and set F n ABS n According to the corresponding C n Enter the concentration-absorbance relationship graph; Perform linear regression on the concentration-absorbance relationship diagram to obtain the element standard curve. Analyze all water quality elements. Each water quality element corresponds to an element standard curve. The format of the element standard curve is AS=a×C+b, where AS is absorbance, C is element concentration, a is the slope of the element standard curve, and b is the intercept of the element standard curve. In practical applications, since in atomic absorption spectrometry, the formulation of a standard curve requires at least 4 coordinate points as a reference, the first number N1 is set to 4. Reference solution is a special term for atomic absorption spectrometry and is not further elaborated in this embodiment. This embodiment takes iron ions as an example to illustrate the analysis process of the element standard curve. The remaining water quality elements are no longer displayed too much, and F1 to F4 are obtained by numbering. There is no specific requirement for the setting of the first concentration, but it is necessary to ensure that the absorbance measured by all element solutions is below 0.8 as much as possible. Among them, F4 has the largest element concentration, and its concentration is 4 times that of the first concentration. One concentration, so ensure that the absorbance measured by the element solution of 4 times the first concentration is below 0.8; in this embodiment, the first concentration ρ is set to 0.2 mg / L, and the element concentrations C1 to C4 of F1 to F4 are 0.2 mg / L, 0.4 mg / L, 0.6 mg / L and 0.8 mg / L respectively; the absorbance of F1 to F4 is detected by the existing atomic spectrophotometry detection technology, and ABS1 to ABS4 are 0.147, 0.295, 0.441 and 0.588 respectively. Combined with the coordinate point (0,0), the concentration-absorbance relationship diagram is constructed as shown in Figure 2 As shown, the standard curve of iron ion is obtained by linear regression as AS=0.735×C+0.0002. Each water quality element is analyzed once to obtain the element standard curve corresponding to each water quality element. The spectral interference analysis unit is used to set an impact analysis experimental group for the water quality elements in the element test group, and analyze whether there is a spectral interference phenomenon between two water quality elements through the impact analysis experimental group; The spectral interference analysis unit is configured with a spectral interference analysis strategy, which includes: For any element test group, the two water quality elements are marked as the first element and the second element respectively, and their element solutions F n Also marked as QF n and PF n ; QF n Add PF1 to detect QF n The absorbance of the sample is labeled ASQ(n,1) and compared to ABS n Is it the same as ASQ(n,1)? If so, the output element has no influence signal; if not, the output element has influence signal; If the output element affects the signal, there is spectral interference between the two water quality elements in the marker element test group; If the output element has no impact signal, there is no spectral interference between the two water quality elements in the marker element test group; In practical applications, taking the first element test group as an example, which includes iron ions and aluminum ions, iron ions are marked as the first element and aluminum ions are marked as the second element. n PF1 is added to QF1 to QF4 respectively. What is added here is not the element solution corresponding to PF1, but aluminum ions with element concentration C1 corresponding to PF1. C1 is 0.2 mg / L. That is, 0.2 mg / L of aluminum ions is added to the element solutions of QF1 to QF4 respectively, and then the absorbance of QF1 to QF4 is detected to obtain ASQ(1,1) to ASQ(4,1), and the ABS of ASQ(n,1) and iron ions are compared respectively. n , we find that within the range of n, ASQ(n,1) and ABS n If there is a difference, the element influence signal is output, marking the spectral interference between the two water quality elements in the test group. At this time, the analysis of the impact analysis module is executed.

[0020] The impact analysis module is used to analyze the impact equations between water quality elements in the element test group if there is spectral interference between water quality elements; The impact analysis module is configured with an impact analysis strategy, which includes: When the output element affects the signal, QF n Add PF1 to the record and get ASQ(n,m), where m∈Z+, m represents the QF n Add PF1 to PF1 or add QF to PF1 n Repeat the process until m=N1. Then to PF n Repeat adding QF1 to obtain ASP(n,m) until m=N1; QF n ABS n Marked as ABQ n , PF n ABS n Marked as ABP n , calculate ASQ(n,m) / ABQ n , mark the result as TQ(n,m), calculate ASP(n,m) / ABP n , mark the calculation result as TP(n,m); In practical applications, QF n Repeatedly add PF1 and PF nThe repeated addition of QF1 is to test the influence of the concentration of a certain water quality element on the absorbance of another water quality element when the concentration increases successively. Through the detection, ASQ(1,1) to ASQ(4,4) are obtained, and the value ranges of n and m are both 1 to 4. Similarly, ASP(1,1) to ASP(4,4) are obtained. Due to the large amount of data, they are not specifically displayed in this embodiment. Only the distribution of ASQ(n,m) and ASP(n,m) is briefly displayed through the first element influence trend diagram and the second element influence trend diagram; See also Figure 3 As shown, a plane rectangular coordinate system is established with m×PF1 as the horizontal axis and TQ(n,m) as the vertical axis, named the first element influence trend diagram, and a plane rectangular coordinate system is established with m×QF1 as the horizontal axis and TP(n,m) as the vertical axis, named the second element influence trend diagram; Linear regression is performed on the first element influence trend chart and the second element influence trend chart respectively to obtain the first element influence trend equation and the second element influence trend equation. The format of the first element influence trend equation is Y1=c1×X1+d1, and the format of the second element influence trend equation is Y2=C2×X2+d2, where Y1 is TQ(n,m), X1 is m×PF1, Y2 is TP(n,m), X2 is m×QF1, c1 is the slope of the first element influence trend equation, d1 is the intercept of the first element influence trend equation, c2 is the slope of the second element influence trend equation, and d2 is the intercept of the second element influence trend equation; The first element influence trend equation and the second element influence trend equation together constitute the influence equation group, that is, ; In practical applications, when constructing an element influence trend graph, it is necessary to add the coordinate (0,1), that is, when the concentration of the second element is 0, the change in the absorbance of the first element, and when the concentration of the first element is 0, the change in the absorbance of the second element, to construct the first element influence trend graph as follows Figure 3 As shown, since the second element influence trend diagram is very similar to the first element influence trend diagram, it is no longer specifically shown in this embodiment; the first element influence trend equation obtained by regression is Y1=0.2288×X1+1.005, where c1=0.2288, d1=1.005; the second element influence trend equation obtained by similar analysis is Y2=0.2291×X2+1.004, where c2=0.2291, d2=1.004, and the influence equation group is obtained as follows: .

[0021] The influence elimination module is used to solve the actual absorbance of water quality elements in fiber processing water through the influence equation group and determine the concentration of water quality elements according to the element standard curve; the influence elimination module includes an influence elimination unit and a concentration calculation unit; The influence elimination unit is used to solve the actual absorbance of water quality elements in fiber processing water through the influence equation group; The impact elimination unit is configured with an impact elimination strategy, which includes: The actual absorbances of the first element and the second element with spectral interference linearity between each other are marked as H1 and H2, and the detected absorbances are marked as G1 and G2 respectively; Y1 represents the change trend of the absorbance of the first element affected by the second element at a certain concentration, and Y2 represents the change trend of the absorbance of the second element affected by the first element at a certain concentration. ; Substituting into the influence equations we get , solve H1 and H2, and we get ; Among them, X1 represents m×PF1 in the first element influence trend equation, that is, the concentration of the second element, and X2 represents m×QF1 in the second element influence trend equation, that is, the concentration of the first element. The change is ; In actual application, the absorbances of iron ions and aluminum ions were detected to be G1=0.48 and G2=0.52 respectively. Substituting the data into get ; The concentration calculation unit is used to determine the concentration of water quality elements according to the element standard curve; The concentration calculation unit is configured with a concentration calculation strategy, which includes: Substitute AS=H1 and AS=H2 into the corresponding element standard curves respectively. Since the element standard curve format is AS=a×C+b, the element standard curve corresponding to H1 is expressed as AS1=a1×C1+b1, and the element standard curve corresponding to H2 is expressed as AS2=a2×C2+b2; Substitute AS1=H1 and solve, and substitute AS2=H2 and solve, that is, , combined with get ; The solution obtained is C1 and C2, which are the actual concentrations of the first element and the second element with which there is spectral interference linearity. In practical applications, due to the complex calculation process, it is meaningless to show specific numerical values ​​in this embodiment. Therefore, only the approximate calculation process of the final set of equations is shown after symbolic operation and simplification. C1 is calculated first, and the equation is obtained through operation: , where a1, a2, b1, b2, c1, c2, d1, d2, G1 and G2 are all known numbers. It should be noted that the case of C and the number in the suffix of C are different. The lowercase ones are coefficients, and the uppercase ones are actual concentrations. If the number is a subscript, it represents the concentration of the element mentioned above. After substituting the known numbers into the equation, it is essentially a quadratic equation. Two results are obtained by solving it. Usually, one positive and one negative result is obtained. The positive number is the actual result of C1. If both results are positive, the two results are substituted into C2 to solve it. The obtained C2 must be a positive number. The C1 with a negative C2 is a misplaced result and can be eliminated. Finally, C1 and C2 are the actual concentrations of iron ions and aluminum ions in the water used for fiber processing.

[0022] Example 2, please refer to Figure 4 As shown, the present application provides a method for atomic absorption spectrophotometry detection of water quality for fiber processing, comprising the following steps: Step S1, obtaining water quality elements contained in fiber processing water, and arranging and combining the water quality elements to form an element test group; Step S1 includes the following sub-steps: Step S101, obtaining water quality elements contained in fiber processing water; Step S102, grouping water quality elements in pairs by permutation and combination to obtain element test groups; Step S103, the element to be tested group includes two water quality elements, and the water quality elements in different element to be tested groups are not completely the same; Step S2, performing atomic absorption spectroscopy test on the element test group, determining the element standard curves of different water quality elements, and then determining whether there is spectral interference phenomenon of the water quality elements in the element test group; Step S2 includes the following sub-steps: Step S201, performing atomic absorption spectrometry test on the water quality elements in the element test group, and determining the element standard curves of different water quality elements; Step S201 includes the following sub-steps: Step S2011, for any water element, setting a first amount of element solution, the element solution being a solution obtained by adding the water element at different element concentrations into a reference solution; Step S2012, the first quantity is represented by symbol N1, the element solutions are numbered, and the first quantity is represented by symbol F n Indicates, where n∈Z+ and n is the serial number of F, 1≤n≤N1, sets the first concentration, represented by the symbol ρ, F n The element concentration is set to n×ρ, represented by C n express; Step S2013, using atomic absorption spectrophotometry to detect Fn The absorbance is marked as ABS n ; Step S2014, with C n For X axis, ABS n Establish a rectangular coordinate system for the Y axis, named the concentration-absorbance relationship diagram, and set F n ABS n According to the corresponding C n Enter the concentration-absorbance relationship graph; Step S2015, perform linear regression on the concentration-absorbance relationship diagram to obtain an element standard curve, analyze all water quality elements, and each water quality element corresponds to an element standard curve. The format of the element standard curve is AS=a×C+b, where AS is absorbance, C is element concentration, a is the slope of the element standard curve, and b is the intercept of the element standard curve; Step S202, setting an impact analysis experimental group for the water quality elements in the element to be tested group, and analyzing whether there is spectral interference between two water quality elements through the impact analysis experimental group; Step S202 includes the following sub-steps: Step S2021: for any element to be tested group, mark two water quality elements in it as the first element and the second element respectively, and their element solutions F n Also marked as QF n and PF n ; Step S2022, QF n Add PF1 to detect QF n The absorbance of the sample is labeled ASQ(n,1) and compared to ABS n Is it the same as ASQ(n,1)? If so, the output element has no influence signal; if not, the output element has influence signal; Step S2023, if the output element affects the signal, then there is a spectral interference phenomenon between the two water quality elements in the marker element test group; Step S2024, if the output element has no influence signal, then there is no spectral interference phenomenon between the two water quality elements in the marker element test group; Step S3, if there is spectral interference between water quality elements, then analyze the influence equations between water quality elements in the element test group; Step S3 includes the following sub-steps: Step S301, when outputting the element influence signal, send it to QF n Add PF1 to the record and get ASQ(n,m), where m∈Z+, m represents the QF n Add PF1 to PF1 or add QF to PF1 nRepeat the process until m=N1. Step S302: Send the PF n Repeat adding QF1 to obtain ASP(n,m) until m=N1; Step S303: QF n ABS n Marked as ABQ n , PF n ABS n Marked as ABP n , calculate ASQ(n,m) / ABQ n , mark the result as TQ(n,m), calculate ASP(n,m) / ABP n , mark the calculation result as TP(n,m); Step S304, establish a plane rectangular coordinate system with m×PF1 as the horizontal axis and TQ(n,m) as the vertical axis, named as the first element influence trend diagram, and establish a plane rectangular coordinate system with m×QF1 as the horizontal axis and TP(n,m) as the vertical axis, named as the second element influence trend diagram; Step S305, respectively perform linear regression on the first element influence trend graph and the second element influence trend graph to obtain the first element influence trend equation and the second element influence trend equation, the format of the first element influence trend equation is Y1=c1×X1+d1, and the format of the second element influence trend equation is Y2=C2×X2+d2, wherein Y1 is TQ(n,m), X1 is m×PF1, Y2 is TP(n,m), X2 is m×QF1, c1 is the slope of the first element influence trend equation, d1 is the intercept of the first element influence trend equation, c2 is the slope of the second element influence trend equation, and d2 is the intercept of the second element influence trend equation; Step S306, the first element influence trend equation and the second element influence trend equation together form an influence equation group, that is, ; Step S4, solving the actual absorbance of the water quality elements in the fiber processing water by influencing the equation group and determining the concentration of the water quality elements according to the element standard curve; Step S4 includes the following sub-steps: Step S401, solving the actual absorbance of water quality elements in fiber processing water by using the influence equation group; Step S401 includes the following sub-steps: Step S4011, marking the actual absorbances of the first element and the second element having spectral interference linearity with each other as H1 and H2, and marking the detected absorbances as G1 and G2 respectively; Step S4012, Y1 represents the change trend of the absorbance of the first element affected by the second element at a certain concentration, and Y2 represents the change trend of the absorbance of the second element affected by the first element at a certain concentration, thereby obtaining ; Step S4013, substitute into the influence equation group to obtain , solve H1 and H2, and we get ; Step S4014, where X1 represents m×PF1 in the first element influence trend equation, i.e., the concentration of the second element, and X2 represents m×QF1 in the second element influence trend equation, i.e., the concentration of the first element, and the change is ; Step S402, determining the concentration of water quality elements according to the element standard curve; Step S402 includes the following sub-steps: Step S4021, AS=H1 and AS=H2 are substituted into the corresponding element standard curves respectively. Since the element standard curve format is AS=a×C+b, the element standard curve corresponding to H1 is expressed as AS1=a1×C1+b1, and the element standard curve corresponding to H2 is expressed as AS2=a2×C2+b2; Step S4022, substitute AS1=H1 and solve, substitute AS2=H2 and solve, that is, , combined with get ; Step S4023, solving and obtaining C1 and C2, which are the actual concentrations of the first element and the second element having spectral interference linearity with each other.

[0023] Embodiment 3, the present application provides an electronic device, which may include: a processor, a communication interface, a memory and a communication bus, wherein the processor, the communication interface and the memory communicate with each other through the communication bus. The memory stores computer-readable instructions, and the processor can call the instructions in the memory. When the computer-readable instructions are executed by the processor, the steps in a method for atomic absorption spectrophotometry of water quality for fiber processing are executed to achieve the following functions: arranging and combining water quality elements to form an element test group; determining the element standard curves of different water quality elements, and then determining whether there is spectral interference between the water quality elements in the element test group; analyzing the influence equation group between the water quality elements in the element test group; solving the actual absorbance of the water quality elements in the fiber processing water through the influence equation group and determining the concentration of the water quality elements according to the element standard curve.

[0024] In addition, the logic instructions in the above-mentioned memory can be implemented in the form of software functional units and can be stored in a computer-readable storage medium when sold or used as an independent product. Based on this understanding, the technical solution of the present application can be essentially or partly embodied in the form of a software product that contributes to the prior art. The computer software product is stored in a storage medium, including several instructions to enable a computer device (which can be a personal computer, server, or network device, etc.) to execute all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), disk or optical disk, etc. Various media that can store program codes.

[0025] Embodiment 4, the present application also provides a computer-readable storage medium, the present application provides a storage medium, on which a computer program is stored. When the computer program is executed by a processor, the steps in the above-mentioned atomic absorption spectrophotometric detection method for water quality in fiber processing are executed to achieve the following functions: arranging and combining water quality elements to form an element test group; determining the element standard curves of different water quality elements, and then determining whether there is spectral interference between the water quality elements in the element test group; analyzing the influence equation group between the water quality elements in the element test group; solving the actual absorbance of the water quality elements in the fiber processing water through the influence equation group and determining the concentration of the water quality elements according to the element standard curve.

[0026] Through the description of the above implementation methods, the embodiments of the present invention can be provided as methods, systems or computer program products. Based on such an understanding, the above technical solutions can be essentially or partly contributed to the prior art in the form of software products, which can be stored in a computer-readable storage medium, such as ROM / RAM, a magnetic disk, an optical disk, etc., and include several instructions for enabling a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods described in each embodiment or some parts of the embodiments.

[0027] In the embodiments provided in the present application, it should be understood that the disclosed system or method can be implemented in other ways. The embodiments described above are merely schematic. For example, the division of modules or units is only a logical function division. There may be other division methods in actual implementation. For example, multiple modules or units can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some communication interfaces, and the indirect coupling or communication connection of systems, modules and units can be electrical, mechanical or other forms.

[0028] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A method for atomic absorption spectrophotometry of water quality for fiber processing, characterized in that: The steps include: Obtain water quality elements contained in fiber processing water, and arrange and combine the water quality elements to form an element test group; Perform atomic absorption spectrometry test on the element test group, determine the element standard curves of different water quality elements, and then determine whether there is spectral interference phenomenon in the water quality elements in the element test group; If there is spectral interference between water quality elements, the influence equations between water quality elements in the element test group are analyzed; The actual absorbance of water quality elements in fiber processing water is solved by influencing the equation group and the concentration of water quality elements is determined according to the element standard curve.

2. The method for detecting the quality of water used in fiber processing by atomic absorption spectrophotometry according to claim 1, characterized in that: Obtaining water quality elements contained in fiber processing water, arranging and combining the water quality elements to form an element test group includes the following sub-steps: Obtain water quality elements contained in fiber processing water; By means of permutations and combinations, water quality elements are grouped in pairs to obtain the element test group; The element test group includes two water quality elements, and the water quality elements in different element test groups are not completely the same.

3. The method for atomic absorption spectrophotometry of fiber processing water quality according to claim 2, characterized in that: Performing atomic absorption spectroscopy test on the element test group, determining the element standard curves of different water quality elements, and then determining whether there is spectral interference phenomenon of the water quality elements in the element test group includes the following sub-steps: Perform atomic absorption spectrometry tests on the water quality elements in the element test group and determine the element standard curves of different water quality elements; An impact analysis experimental group is set up for the water quality elements in the element test group, and the impact analysis experimental group is used to analyze whether there is spectral interference between the two water quality elements.

4. The method for atomic absorption spectrophotometry of fiber processing water quality according to claim 3, characterized in that: Performing atomic absorption spectrometry on the water quality elements in the element test group and determining the element standard curves of different water quality elements includes the following sub-steps: For any water quality element, a first quantity of element solution is set, wherein the element solution is a solution obtained by adding the water quality element to a reference solution at different element concentrations; The first number is represented by the symbol N1, the element solutions are numbered, and the first number is represented by the symbol F n Indicates, where n∈Z+ and n is the serial number of F, 1≤n≤N1, sets the first concentration, represented by the symbol ρ, F n The element concentration is set to n×ρ, represented by C n express; F was detected by atomic absorption spectrophotometry. n The absorbance is marked as ABS n ; C n For X axis, ABS n Establish a rectangular coordinate system for the Y axis, named the concentration-absorbance relationship diagram, and set F n ABS n According to the corresponding C n Enter the concentration-absorbance relationship graph; Linear regression is performed on the concentration-absorbance relationship diagram to obtain the element standard curve. All water quality elements are analyzed, and each water quality element corresponds to an element standard curve. The format of the element standard curve is AS=a×C+b, wherein AS is the absorbance, C is the element concentration, a is the slope of the element standard curve, and b is the intercept of the element standard curve.

5. The method for atomic absorption spectrophotometry of fiber processing water quality according to claim 4, characterized in that: An impact analysis experimental group is set for the water quality elements in the element test group. The impact analysis experimental group is used to analyze whether there is spectral interference between two water quality elements, including the following sub-steps: For any element test group, the two water quality elements are marked as the first element and the second element respectively, and their element solutions F n Also marked as QF n and PF n ; QF n Add PF1 to detect QF n The absorbance of the sample is labeled ASQ(n,1) and compared to ABS n Is it the same as ASQ(n,1)? If so, the output element has no influence signal; if not, the output element has influence signal; If the output element affects the signal, there is spectral interference between the two water quality elements in the marker element test group; If the output element has no influencing signal, there is no spectral interference between the two water quality elements in the marker element test group.

6. The method for atomic absorption spectrophotometry of fiber processing water quality according to claim 5, characterized in that: If there is spectral interference between water quality elements, the influence equation group between water quality elements in the element to be tested group includes the following sub-steps: When the output element affects the signal, QF n Add PF1 to the record and get ASQ(n,m), where m∈Z+, m represents the QF n Add PF1 to PF1 or add QF to PF1 n Repeat the process until m=N1. Then to PF n Repeat adding QF1 to obtain ASP(n,m) until m=N1; QF n ABS n Marked as ABQ n , PF n ABS n Marked as ABP n , calculate ASQ(n,m) / ABQ n , mark the result as TQ(n,m), calculate ASP(n,m) / ABP n , mark the calculation result as TP(n,m); A plane rectangular coordinate system is established with m×PF1 as the horizontal axis and TQ(n,m) as the vertical axis, named the first element influence trend diagram; a plane rectangular coordinate system is established with m×QF1 as the horizontal axis and TP(n,m) as the vertical axis, named the second element influence trend diagram; Perform linear regression on the first element influence trend graph and the second element influence trend graph respectively to obtain the first element influence trend equation and the second element influence trend equation, the first element influence trend equation format is Y1=c1×X1+d1, the second element influence trend equation format is Y2=C2×X2+d2, wherein Y1 is TQ(n,m), X1 is m×PF1, Y2 is TP(n,m), X2 is m×QF1, c1 is the slope of the first element influence trend equation, d1 is the intercept of the first element influence trend equation, c2 is the slope of the second element influence trend equation, and d2 is the intercept of the second element influence trend equation; The first element influence trend equation and the second element influence trend equation together constitute an influence equation group, namely .

7. The method for atomic absorption spectrophotometry of fiber processing water quality according to claim 6, characterized in that: Solving the actual absorbance of water quality elements in fiber processing water by influencing the equations and determining the concentration of water quality elements according to the element standard curve includes the following sub-steps: The actual absorbance of water quality elements in fiber processing water is solved by influencing the equations; Determine the concentration of water quality elements based on the element standard curve.

8. The method for atomic absorption spectrophotometry of fiber processing water quality according to claim 7, characterized in that: Solving the actual absorbance of water quality elements in fiber processing water by influencing the equations includes the following sub-steps: The actual absorbances of the first element and the second element with spectral interference linearity between each other are marked as H1 and H2, and the detected absorbances are marked as G1 and G2 respectively; Y1 represents the change trend of the absorbance of the first element affected by the second element at a certain concentration, and Y2 represents the change trend of the absorbance of the second element affected by the first element at a certain concentration. ; Substituting into the influence equations we get , solve H1 and H2, and we get ; Among them, X1 represents m×PF1 in the first element influence trend equation, that is, the concentration of the second element, and X2 represents m×QF1 in the second element influence trend equation, that is, the concentration of the first element. The change is .

9. The method for detecting the quality of water used in fiber processing by atomic absorption spectrophotometry according to claim 8, characterized in that: Determining the concentration of water quality elements based on the element standard curve includes the following sub-steps: Substitute AS=H1 and AS=H2 into the corresponding element standard curves respectively. Since the element standard curve format is AS=a×C+b, the element standard curve corresponding to H1 is expressed as AS1=a1×C1+b1, and the element standard curve corresponding to H2 is expressed as AS2=a2×C2+b2; Substitute AS1=H1 and solve, and substitute AS2=H2 and solve, that is, , combined with get ; The obtained C1 and C2 are the actual concentrations of the first element and the second element with which there is spectral interference linearity.

10. A fiber processing water quality atomic absorption spectrophotometric detection system, used to implement a fiber processing water quality atomic absorption spectrophotometric detection method according to any one of claims 1 to 9, characterized in that: It includes an element combination module, a spectrum test module, an impact analysis module and an impact elimination module; the element combination module, the spectrum test module and the impact elimination module are respectively connected with the impact analysis module data; The element combination module is used to obtain water quality elements contained in fiber processing water, and to arrange and combine the water quality elements to form an element test group; The spectrum test module is used to perform atomic absorption spectrum test on the element test group, determine the element standard curves of different water quality elements, and then determine whether there is spectrum interference phenomenon in the water quality elements in the element test group; The influence analysis module is used to analyze the influence equations between the water quality elements in the element to be tested group if there is spectral interference between the water quality elements; The influence elimination module is used to solve the actual absorbance of water quality elements in fiber processing water through the influence equation group and determine the concentration of water quality elements according to the element standard curve.

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