Device for measuring manganese content in water

Abstract

The utility model relates to the technical field of water quality detection, and discloses a device for measuring manganese content in water, which comprises a mounting shell and a spectrophotometer main body, a photometer mounting port is arranged at the top of the mounting shell, and the spectrophotometer main body is arranged at the top of the photometer mounting port. According to the portable spectrophotometer disclosed by the utility model, the spectrophotometer mounting port is arranged, so that the installation of the spectrophotometer main body is facilitated, the spectrophotometer main body is a handheld portable spectrophotometer and is relatively convenient to carry, and an external water source is pressurized and pumped into the detection sample cup by the sample lead-in assembly; a sample in the detection sample cups is guided to the detection end of the spectrophotometer main body by the sample guide-out assembly, so that sampling and detection are completed, the plurality of detection sample cups can be used for sampling and storing water samples on different field sites respectively, the measurement efficiency is high, and the whole device is relatively small and relatively convenient to carry; and sampling and classified storage of field samples are facilitated, the measuring speed is high, and the measuring convenience is high.

Description

A device for determining manganese content in water Technical Field

[0001] This utility model relates to the field of water quality testing technology, specifically a device for determining the manganese content in water. Background Technology

[0002] In the field of water quality monitoring, accurate determination of manganese content in water is of great significance for assessing water safety and protecting human health. Currently, common methods for determining manganese content in water include ammonium persulfate spectrophotometry and atomic absorption spectrometry, and the corresponding measuring devices are constantly being developed. However, with increasingly stringent environmental monitoring requirements and the diversification of water quality testing scenarios, existing manganese content measuring devices are no longer sufficient to meet the demands for efficient and accurate detection.

[0003] Existing methods for determining manganese content in water sources typically employ spectrophotometry. However, in practice, spectrophotometry requires large instruments that are relatively inconvenient to carry, making it difficult to perform direct measurements of water samples in the field. Miniaturized spectrophotometers, on the other hand, lack sufficient sample storage and classification adjustment capabilities, resulting in a relatively poor balance between overall portability and sample collection, thus affecting the convenience of measurement and making field measurements inconvenient. Therefore, we propose a manganese content determination device for water to address these issues. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a device for determining the manganese content in water, which has the advantages of being small in size, relatively easy to carry, convenient for field sampling and classification storage, fast measurement speed, and high measurement convenience.

[0005] To achieve the above objectives, this utility model provides: a device for determining the manganese content in water, comprising a mounting housing and a spectrophotometer body, wherein the top of the mounting housing is provided with a spectrophotometer mounting port;

[0006] The main body of the spectrophotometer is placed on top of the spectrophotometer mounting port. A sample placement cavity is installed on the front of the mounting housing. A sample cup is fitted onto the sample placement cavity. A sample import component and a sample export component are provided on the side of the mounting housing.

[0007] The sample cup is equipped with control valves at both the top and bottom ends, and the guide ends of the sample inlet component and the sample outlet component are connected to the top and bottom sides of the sample cup respectively.

[0008] Preferably, the main body of the spectrophotometer is a handheld portable spectrophotometer, and the number of the test sample cups is not less than two.

[0009] Preferably, the top of the mounting housing is provided with a lifting handle, and the side of the mounting housing is provided with a support shoulder strap.

[0010] Preferably, the sample introduction assembly includes an introduction sampling tube and a flow guide pump body. The flow guide pump body is fixedly installed on the side of the mounting housing, and the introduction sampling tube is correspondingly installed on the flow guide end of the flow guide pump body. The top end of the introduction sampling tube is connected to the detection sample cup.

[0011] Preferably, the bottom end of the inlet sampling tube is provided with a filter screen, the inlet sampling tube is a sampling hose, and the inlet sampling tube is hung on the mounting housing.

[0012] Preferably, the sample export assembly includes an export sampling tube and a micro pump body. The micro pump body is fixedly installed on the side of the mounting housing. The export sampling tube is correspondingly installed on the flow guide end of the micro pump body. One end of the export sampling tube is connected to the detection sample cup, and the other end of the export sampling tube is located at the sampling end of the spectrophotometer body. The export sampling tube is made of flexible tubing.

[0013] Preferably, the side of the test sample cup is provided with a reagent inlet tube, and both the sample inlet component and the sample outlet component are single, and both the sample inlet component and the sample outlet component are connected to a single test sample cup.

[0014] Preferably, the guide end of the sample inlet component is connected to the top of the sample cup, and the guide end of the sample outlet component is connected to the bottom of the sample cup.

[0015] (III) Beneficial Effects

[0016] Compared with the prior art, the present invention provides a device for measuring manganese content in water, which has the following advantages:

[0017] 1. This water manganese content measuring device has a photometer mounting port on the top of the mounting housing. The main body of the spectrophotometer can be installed and fixed on the photometer mounting port. The installation and locking of the main body of the spectrophotometer is relatively convenient. The main body of the spectrophotometer is a handheld portable spectrophotometer, which can measure the manganese content in water by spectrophotometry. The lifting handle and the carrying shoulder strap can be carried by hand and shoulder respectively, which is relatively convenient to carry. The overall device is small and relatively easy to carry.

[0018] 2. This manganese content determination device in water features a sample placement chamber installed on the front of the housing. Multiple sample cups can be fitted into the chamber. An external water source is pressurized and drawn into the sample cups via a sample inlet assembly. The sample outlet assembly then extracts the sample from the cups and directs it to the detection end of the spectrophotometer, completing the sampling and detection process. Multiple sample cups can be used to collect and preserve water samples from different field locations. A reagent inlet tube introduces external reagents into the sample cups for spectrophotometric measurement. The device offers convenient and efficient measurement. A control valve provides a sealing function, preventing direct visual contact with the water sample and facilitating the sampling and classification of field samples. It also boasts fast measurement speed and high convenience. Attached Figure Description

[0019] Figure 1 is a frontal perspective three-dimensional schematic diagram of the structure of this utility model;

[0020] Figure 2 is a top-view perspective view of the structure of this utility model;

[0021] Figure 3 is a bottom-view perspective view of the structure of this utility model;

[0022] Figure 4 is a frontal perspective three-dimensional schematic diagram of the connection structure between the test sample cup and the control valve of this utility model;

[0023] Figure 5 is a bottom-view perspective view of the connection structure between the sampling tube and the filter screen of this utility model.

[0024] In the diagram: 1. Mounting housing; 2. Spectrophotometer body; 3. Spectrophotometer mounting port; 4. Sample placement chamber; 5. Sample cup; 6. Sample introduction assembly; 61. Introducing sampling tube; 62. Flow pump body; 63. Filter screen; 7. Sample export assembly; 71. Export sampling tube; 72. Miniature pump body; 8. Control valve; 9. Lifting handle; 10. Support shoulder strap; 11. Reagent introduction tube. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please refer to Figures 1-5. A device for measuring manganese content in water includes a mounting housing 1 and a spectrophotometer body 2. The top of the mounting housing 1 is provided with a spectrophotometer mounting port 3.

[0027] The spectrophotometer body 2 is placed on top of the spectrophotometer mounting port 3. A sample placement cavity 4 is installed on the front of the mounting housing 1. A detection sample cup 5 is snapped onto the sample placement cavity 4. A sample import component 6 and a sample export component 7 are provided on the side of the mounting housing 1.

[0028] Among them, the upper and lower ends of the test sample cup 5 are equipped with control valves 8, and the guide ends of the sample inlet component 6 and the sample outlet component 7 are connected to the upper and lower sides of the test sample cup 5 respectively.

[0029] The beneficial effects of the above-mentioned device are as follows: By setting a photometer mounting port 3 on the top of the mounting housing 1, it is convenient to install the spectrophotometer body 2. The spectrophotometer body 2 is a handheld portable spectrophotometer, which is relatively convenient to carry. A sample placement cavity 4 is installed on the front of the mounting housing 1, which can install and lock multiple test sample cups 5. The external water source is pressurized and drawn into the test sample cup 5 by the sample inlet component 6, and then the sample outlet component 7 guides the sample in the test sample cup 5 to the detection end of the spectrophotometer body 2 to complete the sampling and detection. Multiple test sample cups 5 can be used to sample and preserve water samples from different field sites, resulting in high measurement efficiency. The control valve 8 plays a sealing and closing role, making the overall device small and relatively convenient to carry. It also facilitates the sampling and classification storage of field samples, and has a fast measurement speed and high measurement convenience.

[0030] Specifically,

[0031] 1. Required reagents:

[0032] 1. Manganese dioxide solution: concentrations of 0.05 mg / L, 0.10 mg / L, 0.20 mg / L, 0.50 mg / L, 1.00 mg / L, and 1.50 mg / L (concentrations are expressed as Mn);

[0033] 2. Phosphate buffer solution: pH = 7.5;

[0034] 3. N,N-Diethyl-1,4-phenylenediamine sulfate solution DPD:

[0035] ρ[NH2-C6H4-N(C2H5)2·H2SO4]=1.1g / L;

[0036] 4. Thioacetamide solution: ρ(CH3CSNH2) = 2.5 g / L;

[0037] 5. Hydrochloric acid solution: c(HCl) = 1.0 mol / L;

[0038] 6. Sodium hydroxide solution: c(NaOH) = 1.0 mol / L;

[0039] 7. Water used in the experiment.

[0040] 2. Instrument zeroing

[0041] 1. Set the wavelength of the portable spectrophotometer to 552±5nm;

[0042] 2. Add pure water to the sample cup, place the spectrophotometer inside, and zero the sample cup;

[0043] 3. Draw the standard curve

[0044] 1. Add 1 / 15 volume of phosphate buffer solution and 1 / 15 volume of DPD solution to the sample cup, and dilute to the mark with pure water. Mix well and react for 2-6 minutes.

[0045] 2. Place the sample cup into the spectrophotometer and record the absorbance A0.

[0046] 3. Add 1 / 15 volume of phosphate buffer solution and 1 / 15 volume of DPD solution to the sample cup, and dilute to the mark with 0.05 mg / L manganese dioxide solution. Mix well and react for 2-6 minutes.

[0047] 4. Place the sample cup into the spectrophotometer and record the absorbance A1.

[0048] 5. Repeat steps 3 to 4 above, and test manganese dioxide solutions with concentrations of 0.10 mg / L, 0.20 mg / L, 0.50 mg / L, 1.00 mg / L, and 1.50 mg / L respectively, and record the absorbance A2 to A6.

[0049] 6. Plot a calibration curve with manganese concentration on the x-axis and absorbance A0 to A6 on the y-axis.

[0050] 4. Sample testing

[0051] 1. Sample preparation: Take 100 mL of the sample to be tested and put it into a 250 mL Erlenmeyer flask. Add sodium hydroxide solution to adjust the pH to about 12 and stir the sample with a glass rod for 3 min. Then use hydrochloric acid solution to adjust the pH of the sample to about 7-8. Add 1.0 mL of thioacetamide solution, mix well, and it is ready for testing.

[0052] 2. Add 1 / 15 volume of phosphate buffer solution and 1 / 15 volume of DPD solution to the sample cup, add the treated water sample, and bring the volume up to the mark of the sample cup. Mix well and react for 2-6 minutes.

[0053] 3. Place the sample cup into the spectrophotometer and record the absorbance Ax.

[0054] 4. Substitute Ax into the calibration curve equation to calculate the concentration of manganese in the water sample.

[0055] The key reaction principle is as follows:

[0056]

[0057] Furthermore, the main body 2 of the spectrophotometer is a handheld portable spectrophotometer, and the number of sample cups 5 is no less than two;

[0058] By setting the main body 2 of the spectrophotometer to a handheld portable spectrophotometer, the portability is relatively good. The number of sample cups 5 is no less than two. Multiple sample cups 5 can be used to collect and preserve water samples from different field sites, resulting in good multi-sample preservation.

[0059] Furthermore, the top of the mounting housing 1 is provided with a lifting handle 9, and the side of the mounting housing 1 is provided with a support shoulder strap 10;

[0060] With the addition of a lifting handle 9 and a carrying shoulder strap 10, it can be carried by hand or shoulder, making it relatively convenient to carry and easy to use in the field.

[0061] Furthermore, the sample introduction component 6 includes an introduction sampling tube 61 and a flow pump body 62. The flow pump body 62 is fixedly installed on the side of the mounting housing 1, and the introduction sampling tube 61 is correspondingly installed on the flow guide end of the flow pump body 62. The top end of the introduction sampling tube 61 is connected to the detection sample cup 5.

[0062] By setting up the sample import component 6, which includes an import sampling tube 61 and a flow guiding pump body 62, the import sampling tube 61 plays the role of water source sampling and extraction, and the flow guiding pump body 62 can play the role of pressurizing and guiding the extracted water source, making water sample sampling convenient.

[0063] Furthermore, a filter screen 63 is provided at the bottom of the inlet sampling tube 61. The inlet sampling tube 61 is a sampling hose and is hung on the mounting housing 1.

[0064] By setting up a filter screen 63, when sampling is performed by the inlet sampling tube 61, the filter screen 63 can filter the impurities such as stones in the water source. The filter screen 63 can isolate and filter these impurities, making it convenient for sampling. The inlet sampling tube 61 is a sampling hose, which allows the inlet sampling tube 61 to inject samples into different test sample cups 5 respectively. The sampling effect is good, and the sample distribution and storage are convenient.

[0065] Furthermore, the sample export assembly 7 includes an export sampling tube 71 and a micro pump body 72. The micro pump body 72 is fixedly installed on the side of the mounting housing 1, and the export sampling tube 71 is correspondingly installed on the flow guide end of the micro pump body 72. One end of the export sampling tube 71 is connected to the detection sample cup 5, and the other end of the export sampling tube 71 is set at the sampling end of the spectrophotometer body 2. The export sampling tube 71 is made of flexible tubing.

[0066] By setting up the export sampling tube 71 and the micro pump body 72, the sample water in the test sample cup 5 can be guided to the detection end of the spectrophotometer body 2 through the export sampling tube 71 to complete the sampling and detection. The micro pump body 72 is a micro pump that plays the role of pressurizing and guiding the water source. It is also small in size. The export sampling tube 71 is made of flexible tubing and can be connected to different test sample cups 5. Multiple test sample cups 5 can guide different water sources separately, which is convenient for guiding the water.

[0067] Furthermore, a reagent inlet tube 11 is provided on the side of the test sample cup 5. The sample inlet component 6 and the sample outlet component 7 are both single and are connected to a single test sample cup 5.

[0068] By setting up the reagent inlet tube 11, the test reagent can be injected into the test sample cup 5 and then exported by the sample export component 7 for sample testing, which is highly practical.

[0069] Furthermore, the guide end of the sample inlet component 6 is connected to the top of the sample cup 5, and the guide end of the sample outlet component 7 is connected to the bottom of the sample cup 5.

[0070] By setting the guide end of the sample inlet component 6 to be connected to the top of the test sample cup 5, and the guide end of the sample outlet component 7 to be connected to the bottom of the test sample cup 5, the sample inlet component 6 and the sample outlet component 7 can only inject or extract from a single test sample cup 5 at the same time, making extraction and injection stable and convenient.

[0071] It should be noted that all the devices in this apparatus are common devices on the market, and can be selected according to specific needs. The circuit connection relationship of each device is a simple series and parallel connection circuit. There is no innovation in the circuit connection. Those skilled in the art can easily implement it. It belongs to the prior art and will not be described in detail.

[0072] Working principle: The spectrophotometer body 2 can be installed and fixed on the photometer mounting port 3 provided on the top of the mounting housing 1. The installation and locking of the spectrophotometer body 2 is relatively convenient. The spectrophotometer body 2 is a handheld portable spectrophotometer that can measure the manganese content in water by spectrophotometry. The lifting handle 9 and the carrying shoulder strap 10 can be carried by hand and shoulder respectively, making it relatively convenient to carry.

[0073] The front of the housing 1 is equipped with a sample placement cavity 4, which can hold multiple sample cups 5. The sample inlet component 6 pressurizes and draws external water into the sample cups 5, and the sample outlet component 7 extracts the sample from the sample cups 5 and guides it to the detection end of the spectrophotometer body 2 to complete the sampling and detection. Multiple sample cups 5 can be used to collect and preserve water samples from different field sites. The reagent inlet tube 11 can introduce external reagents into the sample cups 5 for spectrophotometric measurement. The measurement is convenient and efficient. The control valve 8 acts as a sealing valve, making it difficult to see the water sample. This makes the overall device smaller and more portable, and facilitates the sampling and classification of field samples. The measurement speed is fast and the measurement is convenient.

[0074] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0075] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for determining manganese content in water, comprising a mounting housing (1) and a spectrophotometer body (2), characterized in that: The top of the mounting housing (1) is provided with a photometer mounting port (3); the spectrophotometer body (2) is placed on the top of the photometer mounting port (3), the front of the mounting housing (1) is provided with a sample placement cavity (4), a test sample cup (5) is fitted on the sample placement cavity (4), and the side of the mounting housing (1) is provided with a sample introduction component (6) and a sample export component (7); wherein, the upper and lower ends of the test sample cup (5) are provided with control valves (8), the guide ends of the sample introduction component (6) and the sample export component (7) are connected to the upper and lower sides of the test sample cup (5), the spectrophotometer body (2) is a handheld portable spectrophotometer, and the number of test sample cups (5) is not less than two.

2. The device for determining manganese content in water according to claim 1, characterized in that: The top of the mounting housing (1) is provided with a lifting handle (9), and the side of the mounting housing (1) is provided with a support shoulder strap (10).

3. The device for determining manganese content in water according to claim 1, characterized in that: The sample introduction component (6) includes an introduction sampling tube (61) and a flow pump body (62). The flow pump body (62) is fixedly installed on the side of the mounting housing (1). The introduction sampling tube (61) is installed at the flow guide end of the flow pump body (62). The top end of the introduction sampling tube (61) is connected to the detection sample cup (5).

4. The device for determining manganese content in water according to claim 3, characterized in that: The bottom end of the inlet sampling tube (61) is provided with a filter screen (63). The inlet sampling tube (61) is a sampling hose and is hung on the mounting housing (1).

5. The device for determining manganese content in water according to claim 1, characterized in that: The sample export component (7) includes an export sampling tube (71) and a micro pump body (72). The micro pump body (72) is fixedly installed on the side of the mounting housing (1). The export sampling tube (71) is installed on the flow guide end of the micro pump body (72). One end of the export sampling tube (71) is connected to the detection sample cup (5). The other end of the export sampling tube (71) is set at the sampling end of the spectrophotometer body (2). The export sampling tube (71) is made of flexible tubing.

6. The device for determining manganese content in water according to claim 1, characterized in that: The side of the test sample cup (5) is provided with a reagent inlet tube (11). The sample inlet component (6) and the sample outlet component (7) are both single. The sample inlet component (6) and the sample outlet component (7) are both connected to a single test sample cup (5).

7. The device for determining manganese content in water according to claim 1, characterized in that: The guide end of the sample inlet component (6) is connected to the top of the sample cup (5), and the guide end of the sample outlet component (7) is connected to the bottom of the sample cup (5).

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