A method for calibrating a quadrupole gas mass spectrometer using scanning peak position values

Abstract

The present application relates to a method for calibrating a quadrupole gas mass spectrometer using scan peak position values. The method comprises: obtaining the ion mass number for gas mass spectrometer calibration; determining the ion flux intensity for gas mass spectrometer calibration based on the ion mass number; calculating the alternating current voltage for gas mass spectrometer calibration based on the ion flux intensity; and reversely calculating the calibrated coefficient for gas mass spectrometer calibration based on the alternating current voltage. By calibrating the coefficient for calculating the alternating current voltage corresponding to the mass number of the ion flux intensity, the present application achieves the purpose of calibrating a quadrupole gas mass spectrometer and enables accurate detection and analysis of the quadrupole mass spectrometer.

Description

Technical Field

[0001] The present invention relates to the field of measurement and testing technology, and more specifically, to a method for calibrating a quadrupole gas mass spectrometer by utilizing scanning peak position values. Background Art

[0002] Research on high-accuracy, high-sensitivity, and wide-mass-detection-range gas mass spectrometers can break through technological and product barriers, freeing us from the current constraints of human factors, and better meet the urgent need for gas mass spectrometers with a wide mass detection range. This research will have revolutionary and epoch-making significance in promoting the development of gas partial pressure mass spectrometry technology and achieving the localization of gas mass spectrometers with independent intellectual property rights. Summary of the Invention

[0003] The present embodiments provide a method for calibrating a quadrupole gas mass spectrometer using scan peak position values. To provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is provided below. This summary is not intended to be a comprehensive review, identify key or important elements, or delineate the scope of these embodiments. Its sole purpose is to present some concepts in a simplified form, serving as a prelude to the detailed description that follows.

[0004] In a first aspect, an embodiment of the present application provides a method for calibrating a quadrupole gas mass spectrometer using scanning peak position values, the method comprising:

[0005] Obtain the ion mass number m calibrated by the gas mass spectrometer;

[0006] Determining the maximum ion current intensity of the gas mass spectrometer calibration according to the ion mass number m;

[0007] Calculating the AC voltage V for calibration of the gas mass spectrometer according to the maximum ion current intensity;

[0008] According to the AC voltage V, the calibration coefficient K1 of the gas mass spectrometer calibration is reversely calculated.

[0009] According to a preferred embodiment, the step of obtaining the ion mass number m calibrated by the gas mass spectrometer includes:

[0010] Set the calibration mass range and sampling points for gas mass spectrometer calibration;

[0011] The ion mass number m calibrated by the gas mass spectrometer is obtained according to the calibration mass number range and the number of sampling points.

[0012] According to a preferred embodiment, determining the maximum ion current intensity for calibration of the gas mass spectrometer according to the ion mass number m includes:

[0013] Obtaining the effective ion current intensity of the gas mass spectrometer calibration according to the ion mass number m;

[0014] The maximum effective ion current intensity is selected and determined as the maximum ion current intensity for calibration of the gas mass spectrometer.

[0015] According to a preferred embodiment, obtaining the effective ion current intensity of the gas mass spectrometer calibration according to the ion mass number m includes:

[0016] Filtering the ions according to their mass number m to obtain an effective ion current intensity for calibration of the gas mass spectrometer;

[0017] The filtering process is to collect 10 ion current intensities for each sampling point in the ion mass number m, remove the largest ion current intensity and the smallest ion current intensity, and calculate the average value of the remaining ion current intensities; the average value is the effective ion current intensity.

[0018] According to a preferred embodiment, the calculating of the AC voltage V for calibration of the gas mass spectrometer according to the maximum ion current intensity includes:

[0019] According to the maximum ion current intensity, obtaining the ion mass number m1 corresponding to the maximum ion current intensity calibrated by the gas mass spectrometer, wherein the ion mass number m includes the ion mass number m1 corresponding to the maximum ion current intensity;

[0020] The AC voltage V for calibrating the gas mass spectrometer is calculated according to the ion mass number m1 corresponding to the maximum ion current intensity.

[0021] In a second aspect, an embodiment of the present application provides a device for calibrating a quadrupole gas mass spectrometer using scan peak position values, the device comprising:

[0022] A data acquisition module is used to obtain the ion mass number m for calibration of the gas mass spectrometer;

[0023] a determination module, configured to determine a maximum ion current intensity for calibration of the gas mass spectrometer according to the ion mass number m;

[0024] a calculation module, configured to calculate an AC voltage V for calibration of the gas mass spectrometer according to the maximum ion current intensity;

[0025] The reverse calculation module is used to reversely calculate the calibration coefficient K1 of the gas mass spectrometer according to the AC voltage V.

[0026] According to a preferred embodiment, the data acquisition module is specifically used to:

[0027] Set the calibration mass range and sampling points for gas mass spectrometer calibration;

[0028] The ion mass number m calibrated by the gas mass spectrometer is obtained according to the calibration mass number range and the number of sampling points.

[0029] According to a preferred embodiment, the determining module is specifically configured to:

[0030] Obtaining the effective ion current intensity of the gas mass spectrometer calibration according to the ion mass number m;

[0031] The maximum effective ion current intensity is selected and determined as the maximum ion current intensity for calibration of the gas mass spectrometer.

[0032] In a third aspect, an embodiment of the present application provides a computer storage medium, which stores a plurality of instructions suitable for being loaded by a processor and executing the above-mentioned method steps.

[0033] In a fourth aspect, an embodiment of the present application provides a terminal, which may include: a processor and a memory; wherein the memory stores a computer program, and the computer program is suitable for being loaded by the processor and executing the above-mentioned method steps.

[0034] The technical solutions provided by the embodiments of the present application may have the following beneficial effects:

[0035] In an embodiment of the present application, the method for calibrating a quadrupole gas mass spectrometer using scan peak values ​​first obtains the ion mass number m for gas mass spectrometer calibration; then, based on the ion mass number m, determines the maximum ion flux intensity for gas mass spectrometer calibration; secondly, based on the maximum ion flux intensity, calculates the AC voltage V for gas mass spectrometer calibration; and finally, based on the AC voltage V, reversely calculates the calibrated coefficient K1 for gas mass spectrometer calibration. By calibrating the AC voltage calculation coefficient corresponding to the ion mass number corresponding to the maximum ion flux intensity, the present application achieves the purpose of calibrating a quadrupole gas mass spectrometer and enables accurate detection and analysis of the quadrupole mass spectrometer.

[0036] In an embodiment of the present application, the method for calibrating a quadrupole gas mass spectrometer using scanning peak position values ​​first sets the calibration mass number range and sampling point number of the gas mass spectrometer calibration; based on the calibration mass number range and the sampling point number, the ion mass number m of the gas mass spectrometer calibration is obtained. Then, based on the ion mass number m, the effective ion current intensity of the gas mass spectrometer calibration is obtained; the maximum effective ion current intensity is selected and determined as the maximum ion current intensity of the gas mass spectrometer calibration. Finally, based on the maximum ion current intensity, the AC voltage V for the gas mass spectrometer calibration is calculated; based on the AC voltage V, the calibrated coefficient K1 of the gas mass spectrometer calibration is inversely calculated. The present application calibrates the quadrupole gas mass spectrometer by scanning peak position values, which can effectively improve the accuracy of the calculation coefficient K value of each mass segment (i.e., each calibration mass number range) of the quadrupole gas mass spectrometer, so that it can accurately calculate the ion AC voltage, thereby accurately calculating the ion current intensity corresponding to the ion mass number, and realizing accurate measurement of the quadrupole mass spectrometer.

[0037] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0039] Figure 1 1 is a flow chart of a method for calibrating a quadrupole gas mass spectrometer using scanning peak position values ​​provided in an embodiment of the present application;

[0040] Figure 2 This is a schematic diagram of the overall process of a method for calibrating a quadrupole gas mass spectrometer using scanning peak position values ​​provided in an embodiment of the present application;

[0041] Figure 3 Schematic diagram of a device for calibrating a quadrupole gas mass spectrometer using scanning peak position values, provided in an embodiment of the present application;

[0042] Figure 4 This is a terminal schematic diagram provided in an embodiment of the present application. DETAILED DESCRIPTION

[0043] The following description and the drawings sufficiently illustrate specific embodiments of the invention to enable those skilled in the art to practice them.

[0044] It should be understood that the embodiments described are only a portion 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 persons of ordinary skill in the art without creative work are within the scope of protection of the present invention.

[0045] In the following description, unless otherwise indicated, identical numbers in different figures represent identical or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Instead, they are merely examples of systems and methods consistent with certain aspects of the present invention, as detailed in the appended claims.

[0046] In the description of the present invention, it should be understood that the terms "first", "second", etc. are used for descriptive purposes only and are not to be understood as indicating or implying relative importance. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. In addition, in the description of the present invention, unless otherwise specified, "plurality" refers to two or more. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the previous and subsequent associated objects are in an "or" relationship.

[0047] The following will be combined with the Figure 1 and attached Figure 2 , a method for calibrating a quadrupole gas mass spectrometer using scanning peak position values ​​provided in an embodiment of the present application is introduced in detail.

[0048] See Figure 1 and 2 , provides a flow chart of a method for calibrating a quadrupole gas mass spectrometer using scanning peak position values ​​in an embodiment of the present application. Figure 1 and 2 As shown, the method of the embodiment of the present application may include the following steps:

[0049] The present application is directed to the characteristic that the ion mass numbers detected by a quadrupole gas mass spectrometer are discrete, and within a certain calibration mass number range, there is only one mass number of ions. By scanning the peak value of the ion current intensity (i.e., the maximum ion current intensity) within a certain calibration mass number range, the AC voltage of the scanned peak value ion mass number is used as the AC voltage of the specific mass ion within the calibration mass number range, thereby calibrating the AC voltage calculation coefficient in the ion current intensity calculation process. The embodiment of the present application achieves the purpose of calibrating the quadrupole gas mass spectrometer by calibrating the AC voltage calculation coefficient within each calibration mass range of the quadrupole gas mass spectrometer, and can realize the accurate qualitative and quantitative detection and analysis of gas components by the quadrupole gas mass spectrometer.

[0050] The gas mass spectrometer calibration process is shown in the figure below: Figure 2 The specific steps are shown below. The H2 ion and the mass number 2 to be calibrated are used as an example to illustrate the specific steps. (The coefficients corresponding to other ion mass numbers can also be calibrated as needed in the application.)

[0051] S100, obtaining the ion mass number m calibrated by the gas mass spectrometer, including:

[0052] Set the calibration mass range and number of sampling points for the gas mass spectrometer calibration. In this embodiment, select the ion mass mn to be calibrated, set the calibration mass range corresponding to the ion mass mn to be calibrated, set the number of sampling points within the calibration mass range, and set the calculation coefficient K2 for the AC voltage of the ion mass to be calibrated. For example, select H2 as the ion to be calibrated, the ion mass mn to be calibrated of H2 ions to be 2, set the calibration mass range to 1-2.9, set the number of sampling points to 20, where n represents the nth sampling point, and in this case, n=11.

[0053] According to the calibration mass number range and the number of sampling points, the ion mass number m calibrated by the gas mass spectrometer is obtained, that is, the ion mass number m for which the ion current intensity needs to be scanned is determined. In the embodiment of the present application, the calibration mass number range of H2 is set to 1-2.9, and the number of sampling points is 20. Then, the ion mass number m for which the ion current intensity needs to be scanned is [1.0, 1.1, 1.2, ..., 2.8, 2.9], and the ion mass number m includes the ion mass number mn that needs to be calibrated.

[0054] S200, determining the maximum ion current intensity for calibration of the gas mass spectrometer according to the ion mass number m, including:

[0055] Obtaining the effective ion current intensity of the gas mass spectrometer calibration according to the ion mass number m, specifically including:

[0056] The ion mass number m is filtered to obtain the effective ion current intensity for calibration of the gas mass spectrometer.

[0057] The embodiment of the present application determines the ion mass number m that needs to scan the ion current intensity, and performs ion current intensity scanning one by one. The ion current intensity scanning of each ion mass number adopts a filtering method to obtain a stable value. The filtering method is to collect 10 ion current intensities, remove the maximum and minimum values ​​therein, and average the remaining values. For example, H2 ions need to be scanned for ion current intensity for all sampling points in the ion mass number m[1.0, 1.1, 1.2, . . ., 2.8, 2.9]; each sampling point collects 10 ion current intensities, and the ion current intensity of the sampling point is obtained by removing the maximum and minimum values ​​and averaging the remaining values ​​by a filtering method, which is referred to as the effective ion current intensity; thereby obtaining the effective ion current intensity of all sampling points.

[0058] The maximum effective ion current intensity is selected and determined as the maximum ion current intensity calibrated by the gas mass spectrometer; in the embodiment of the present application, the effective ion current intensities of all collected ion mass numbers m are compared, and the maximum effective ion current intensity is obtained as the maximum ion current intensity.

[0059] S300, calculating the AC voltage V for calibration of the gas mass spectrometer according to the maximum ion current intensity, including:

[0060] According to the maximum ion current intensity, the ion mass number m1 corresponding to the maximum ion current intensity for calibration of the gas mass spectrometer is obtained, where the ion mass number m includes the ion mass number m1 corresponding to the maximum ion current intensity; according to the ion mass number m1 corresponding to the maximum ion current intensity, the AC voltage V for calibration of the gas mass spectrometer is calculated.

[0061] In the embodiment of the present application, the AC voltage for calibrating the ion mass number is calculated according to the ion mass number m1 corresponding to the maximum ion current intensity at the point. The AC voltage calculation is shown in Formula 1.

[0062] V=K2*m1 (Formula 1)

[0063] Where V is the AC voltage intensity, m1 is the ion mass number corresponding to the maximum ion current intensity, and K2 is the pre-calibration coefficient. The pre-calibration coefficient K2 is a theoretical value calculated based on the motion equation of the ion voltage and ion mass number in the quadrupole electric field. The calculation of this theoretical value is based on the fact that in the quadrupole field, as long as the angular frequency and field radius remain unchanged, the ion mass number and voltage can be equivalent to a linear relationship, and the relationship is shown in Formula 2.

[0064] (Formula 2)

[0065] Where, is the field radius, is the angular frequency, is the charge of the electron (approximately ).

[0066] For example, if the ion mass number mn of H2 ions that need to be calibrated is 2, the actual maximum ion current intensity occurs at the ion mass number 2.2, that is, the maximum ion current intensity corresponds to the ion mass number m1 of 2.2, then the AC voltage corresponding to the H2 ions is V=2.2*K2.

[0067] At step S400, a calibrated coefficient K1 value for the gas mass spectrometer is calculated based on the AC voltage V calculated at step S300. The calibrated coefficient K1 value is then used when the gas mass spectrometer subsequently detects ion flux within the calibrated mass range. For example, the calibrated coefficient K1 value for H2 ions is V / 2.

[0068] In summary, the quadrupole mass spectrometer uses the scanning peak position value to calibrate the AC voltage calculation coefficient. The implementation process is: determine the only mass number ion within a certain calibration mass number range, that is, determine the ion mass number mn that needs to be calibrated; scan the effective ion current intensity within the calibration mass number range; determine the maximum ion current intensity (that is, the ion current intensity peak position value) within the calibration mass number range corresponding to the ion mass number m1; calculate the AC voltage V=K2*m1 through the pre-calibration coefficient K2 value; reversely calculate the post-calibration coefficient K1 value through the AC voltage, K1=V / mn; the post-calibration coefficient K1 value is used for subsequent scanning of the quadrupole mass spectrometer ion current intensity to complete the calibration of the quadrupole mass spectrometer.

[0069] Through the above process, the calibration of the AC voltage calculation coefficient K during the ion current intensity detection process of the gas mass spectrometer is achieved, thereby achieving the calibration of the gas mass spectrometer.

[0070] In an embodiment of the present application, the method of calibrating a quadrupole gas mass spectrometer using scanning peak values ​​is a scanning peak value calibration method provided for equipment calibration of a quadrupole mass spectrometer during use or calibration. The calculation coefficient of the AC voltage can be calibrated in segments according to different ion mass numbers: by collecting the effective ion flow intensity of the ion mass number within the calibration mass number range corresponding to each ion mass number that needs to be calibrated, selecting the maximum effective ion flow intensity as the maximum ion flow intensity, and inversely calculating the AC voltage calculation coefficient K value corresponding to the ion mass number of the maximum ion flow intensity, calibrating the calculation coefficient K2 value before calibration, and obtaining the coefficient K1 value after calibration. The present application utilizes peak position scanning to achieve calibration of multiple ion mass intervals (i.e., calibration mass number range) of a quadrupole gas mass spectrometer, thereby achieving calibration of the quadrupole gas mass spectrometer and thus achieving accurate detection and analysis of the quadrupole mass spectrometer.

[0071] The following are embodiments of the apparatus of the present invention, which can be used to implement the method embodiments of the present invention. For details not disclosed in the apparatus embodiments of the present invention, please refer to the method embodiments of the present invention.

[0072] See Figure 3 , which shows a schematic structural diagram of a device for calibrating a quadrupole gas mass spectrometer using scan peak values, provided by an exemplary embodiment of the present invention. The device includes: a data acquisition module 10, a determination module 20, a calculation module 30, and a back-calculation module 40.

[0073] The data acquisition module 10 is used to obtain the ion mass number m calibrated by the gas mass spectrometer;

[0074] a determination module 20, configured to determine a maximum ion current intensity for calibration of the gas mass spectrometer according to the ion mass number m;

[0075] a calculation module 30, configured to calculate an AC voltage V for calibration of the gas mass spectrometer according to the maximum ion current intensity;

[0076] The reverse calculation module 40 is configured to reversely calculate the calibration coefficient K1 of the gas mass spectrometer according to the AC voltage V.

[0077] According to a preferred embodiment, the data acquisition module 10 is specifically configured to:

[0078] Set the calibration mass range and sampling points for gas mass spectrometer calibration;

[0079] The ion mass number m calibrated by the gas mass spectrometer is obtained according to the calibration mass number range and the number of sampling points.

[0080] According to a preferred embodiment, the determining module 20 is specifically configured to:

[0081] Obtaining the effective ion current intensity of the gas mass spectrometer calibration according to the ion mass number m;

[0082] The maximum effective ion current intensity is selected and determined as the maximum ion current intensity for calibration of the gas mass spectrometer.

[0083] It should be noted that the apparatus for calibrating a quadrupole gas mass spectrometer using scanning peak position values ​​provided in the above-mentioned embodiment, when executing the method for calibrating a quadrupole gas mass spectrometer using scanning peak position values, only uses the division of the above-mentioned functional modules as an example. In actual applications, the above-mentioned functions can be assigned to different functional modules as needed, that is, the internal structure of the device can be divided into different functional modules to complete all or part of the functions described above. In addition, the apparatus for calibrating a quadrupole gas mass spectrometer using scanning peak position values ​​provided in the above-mentioned embodiment and the method embodiment for calibrating a quadrupole gas mass spectrometer using scanning peak position values ​​are based on the same concept. The implementation process is detailed in the method embodiment and will not be repeated here.

[0084] The serial numbers of the above embodiments of the present application are for description only and do not represent the advantages or disadvantages of the embodiments.

[0085] The device for calibrating a quadrupole gas mass spectrometer using scan peak values ​​first obtains the ion mass number m for gas mass spectrometer calibration; then, based on the ion mass number m, determines the maximum ion current intensity for gas mass spectrometer calibration; secondly, calculates the AC voltage V for gas mass spectrometer calibration based on the maximum ion current intensity; and finally, reversely calculates the calibrated coefficient K1 for gas mass spectrometer calibration based on the AC voltage V. This application achieves the purpose of calibrating a quadrupole gas mass spectrometer by calibrating the AC voltage calculation coefficient corresponding to the ion mass number corresponding to the maximum ion current intensity, thereby realizing accurate detection and analysis of the quadrupole mass spectrometer.

[0086] The present invention also provides a computer-readable medium having program instructions stored thereon, which, when executed by a processor, implements the method for calibrating a quadrupole gas mass spectrometer using scanning peak values ​​provided in the above-mentioned various method embodiments.

[0087] The present invention also provides a computer program product comprising instructions, which, when executed on a computer, enables the computer to execute the method of calibrating a quadrupole gas mass spectrometer using scanning peak position values ​​in each of the above method embodiments.

[0088] See Figure 4 , provides a schematic diagram of the structure of a terminal according to an embodiment of the present application. Figure 4 As shown, the terminal 1000 may include: at least one processor 1001 , at least one network interface 1004 , a user interface 1003 , a memory 1005 , and at least one communication bus 1002 .

[0089] The communication bus 1002 is used to implement the connection and communication between these components.

[0090] The user interface 1003 may include a display screen (Display) and a camera (Camera). Optionally, the user interface 1003 may also include a standard wired interface and a wireless interface.

[0091] The network interface 1004 may optionally include a standard wired interface or a wireless interface (such as a WI-FI interface).

[0092] The processor 1001 may include one or more processing cores. The processor 1001 utilizes various interfaces and circuits to connect various components within the terminal 1000. It executes instructions, programs, code sets, or instruction sets stored in the memory 1005, and calls data stored in the memory 1005 to perform various functions and process data for the terminal 1000. Optionally, the processor 1001 may be implemented using at least one hardware form selected from the group consisting of a digital signal processing (DSP), a field-programmable gate array (FPGA), and a programmable logic array (PLA). The processor 1001 may integrate one or a combination of a central processing unit (CPU), a graphics processing unit (GPU), and a modem. The CPU primarily processes the operating system, user interface, and application programs; the GPU is responsible for rendering and drawing the content displayed on the display screen; and the modem handles wireless communications. It is understood that the modem may not be integrated into the processor 1001 and may be implemented separately on a separate chip.

[0093] Among them, the memory 1005 may include a random access memory (RAM) or a read-only memory (Read-Only Memory). Optionally, the memory 1005 includes a non-transitory computer-readable storage medium. The memory 1005 can be used to store instructions, programs, codes, code sets or instruction sets. The memory 1005 may include a program storage area and a data storage area, wherein the program storage area may store instructions for implementing an operating system, instructions for at least one function (such as a touch function, a sound playback function, an image playback function, etc.), instructions for implementing the above-mentioned various method embodiments, etc.; the data storage area may store data involved in the above-mentioned various method embodiments, etc. The memory 1005 may optionally be at least one storage device located away from the aforementioned processor 1001. As Figure 4 As shown, the memory 1005 as a computer storage medium may include an operating system, a network communication module, a user interface module, and an application program for calibrating a quadrupole gas mass spectrometer using scan peak values.

[0094] exist Figure 4In the terminal 1000 shown, the user interface 1003 is mainly used to provide an input interface for the user and obtain user input data; and the processor 1001 can be used to call the application program stored in the memory 1005 for calibrating the quadrupole gas mass spectrometer using scan peak position values, and specifically perform the following operations:

[0095] Obtain the ion mass number m calibrated by the gas mass spectrometer;

[0096] Determining the maximum ion current intensity of the gas mass spectrometer calibration according to the ion mass number m;

[0097] Calculating the AC voltage V for calibration of the gas mass spectrometer according to the maximum ion current intensity;

[0098] According to the AC voltage V, the calibration coefficient K1 of the gas mass spectrometer calibration is reversely calculated.

[0099] In one embodiment, when executing the method of obtaining the ion mass number calibrated by the gas mass spectrometer, the processor 1001 specifically performs the following operations:

[0100] Set the calibration mass range and sampling points for gas mass spectrometer calibration;

[0101] The ion mass number m calibrated by the gas mass spectrometer is obtained according to the calibration mass number range and the number of sampling points.

[0102] In one embodiment, when the processor 1001 determines the maximum ion current intensity of the gas mass spectrometer calibration according to the ion mass number m, the processor 1001 specifically performs the following operations:

[0103] Obtaining the effective ion current intensity of the gas mass spectrometer calibration according to the ion mass number m;

[0104] The maximum effective ion current intensity is selected and determined as the maximum ion current intensity for calibration of the gas mass spectrometer.

[0105] In one embodiment, when the processor 1001 executes the step of obtaining the effective ion current intensity of the gas mass spectrometer calibration according to the ion mass number m, the processor 1001 specifically performs the following operations:

[0106] Filtering the ions according to their mass number m to obtain an effective ion current intensity for calibration of the gas mass spectrometer;

[0107] The filtering process is to collect 10 ion current intensities for each sampling point in the ion mass number m, remove the largest ion current intensity and the smallest ion current intensity, and calculate the average value of the remaining ion current intensities; the average value is the effective ion current intensity.

[0108] In one embodiment, when the processor 1001 calculates the AC voltage V for calibration of the gas mass spectrometer according to the maximum ion current intensity, the processor 1001 specifically performs the following operations:

[0109] According to the maximum ion current intensity, obtaining the ion mass number m1 corresponding to the maximum ion current intensity calibrated by the gas mass spectrometer, wherein the ion mass number m includes the ion mass number m1 corresponding to the maximum ion current intensity;

[0110] The AC voltage V for calibrating the gas mass spectrometer is calculated according to the ion mass number m1 corresponding to the maximum ion current intensity.

[0111] The method for calibrating a quadrupole gas mass spectrometer using scan peak values ​​first obtains the ion mass number m for gas mass spectrometer calibration; then, based on the ion mass number m, determines the maximum ion current intensity for gas mass spectrometer calibration; secondly, calculates the AC voltage V for gas mass spectrometer calibration based on the maximum ion current intensity; and finally, reversely calculates the calibrated coefficient K1 for gas mass spectrometer calibration based on the AC voltage V. This application achieves the purpose of calibrating a quadrupole gas mass spectrometer by calibrating the AC voltage calculation coefficient corresponding to the ion mass number corresponding to the maximum ion current intensity, thereby realizing accurate detection and analysis of the quadrupole mass spectrometer.

[0112] Those skilled in the art will appreciate that all or part of the processes in the above-described method embodiments can be implemented by instructing related hardware through a computer program. The program can be stored in a computer-readable storage medium, and when executed, the program can include the processes in the above-described method embodiments. The storage medium can be a magnetic disk, an optical disk, a read-only memory, or a random access memory.

[0113] The above disclosure is only a preferred embodiment of the present application, and certainly cannot be used to limit the scope of rights of the present application. Therefore, equivalent changes made according to the claims of the present application are still within the scope covered by the present application.

Claims

1. A method for calibrating a quadrupole gas mass spectrometer using scanning peak position values, characterized in that: The following steps are involved: Obtain ion mass numbers for gas mass spectrometer calibration; Determining the ion current intensity for calibration of the gas mass spectrometer according to the ion mass number; Calculating an AC voltage for calibration of the gas mass spectrometer according to the ion current intensity; inversely calculating a calibration coefficient for the gas mass spectrometer calibration based on the AC voltage; Obtain ion masses for gas mass spectrometer calibration, including: Select the ion mass m to be calibrated n , set the ion mass number m that needs to be calibrated n The corresponding calibration mass number range and the number of sampling points within the calibration mass number range; according to the calibration mass number range and the number of sampling points, the ion mass number calibrated by the gas mass spectrometer is obtained, and the ion mass number includes the ion mass number m that needs to be calibrated n ; Determining the ion current intensity for calibration of the gas mass spectrometer according to the ion mass number includes: For the ion mass number that needs to be scanned for ion current intensity, the ion current intensity is scanned one by one. The ion current intensity scan of each ion mass number adopts the filtering method to obtain a stable value, thereby obtaining the effective ion current intensity of all sampling points; Determining the maximum ion current intensity of the gas mass spectrometer calibration according to the effective ion current intensity; Using the maximum ion current intensity as the ion current intensity for calibration of the gas mass spectrometer; Calculating an AC voltage for calibration of the gas mass spectrometer according to the ion current intensity, comprising: Obtaining a mass number corresponding to the ion current intensity calibrated by the gas mass spectrometer according to the ion current intensity calibrated by the gas mass spectrometer; Calculating the AC voltage for calibration of the gas mass spectrometer according to the mass number corresponding to the ion current intensity calibrated by the gas mass spectrometer; The formula for calculating AC voltage is: V=K2*m1; Where V is the AC voltage intensity, m1 is the ion mass number corresponding to the maximum ion current intensity, and K2 is the pre-calibration coefficient; the pre-calibration coefficient K2 is a theoretical value calculated based on the motion equation of the ion voltage and ion mass number in the quadrupole electric field; According to the AC voltage, the calibrated coefficient of the gas mass spectrometer calibration is inversely calculated. The calculation formula of the calibrated coefficient is: K1=V / m n , m n is the mass of the ion that needs to be calibrated.

2. A device for calibrating a quadrupole gas mass spectrometer using scan peak values, the device being used to perform the method according to claim 1, characterized in that: include: A data acquisition module, used for acquiring ion mass numbers for calibration of a gas mass spectrometer; a determination module, configured to determine an ion current intensity for calibration of the gas mass spectrometer according to the ion mass number; a calculation module, configured to calculate an AC voltage for calibration of the gas mass spectrometer according to the ion current intensity; A back-calculation module is used to back-calculate the calibration coefficient of the gas mass spectrometer according to the AC voltage.

3. A computer storage medium, characterized in that The computer storage medium stores a plurality of instructions, which are suitable for being loaded by a processor and executing the method according to claim 1 .

4. A terminal, characterized in that: include: A processor and a memory; wherein the memory stores a computer program, and the computer program is suitable for being loaded by the processor and executing the method according to claim 1.

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