CN110794157A - Tester for anionic surfactant in water - Google Patents
Tester for anionic surfactant in water Download PDFInfo
- Publication number
- CN110794157A CN110794157A CN201911249161.3A CN201911249161A CN110794157A CN 110794157 A CN110794157 A CN 110794157A CN 201911249161 A CN201911249161 A CN 201911249161A CN 110794157 A CN110794157 A CN 110794157A
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- cup
- anionic surfactant
- sample
- way valve
- washing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
- G01N35/02—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor using a plurality of sample containers moved by a conveyor system past one or more treatment or analysis stations
- G01N35/025—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor using a plurality of sample containers moved by a conveyor system past one or more treatment or analysis stations having a carousel or turntable for reaction cells or cuvettes
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/40—Concentrating samples
- G01N1/4055—Concentrating samples by solubility techniques
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
- G01N35/10—Devices for transferring samples or any liquids to, in, or from, the analysis apparatus, e.g. suction devices, injection devices
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
- G01N35/10—Devices for transferring samples or any liquids to, in, or from, the analysis apparatus, e.g. suction devices, injection devices
- G01N35/1002—Reagent dispensers
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
- G01N35/10—Devices for transferring samples or any liquids to, in, or from, the analysis apparatus, e.g. suction devices, injection devices
- G01N35/1004—Cleaning sample transfer devices
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
- G01N35/10—Devices for transferring samples or any liquids to, in, or from, the analysis apparatus, e.g. suction devices, injection devices
- G01N35/1009—Characterised by arrangements for controlling the aspiration or dispense of liquids
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/40—Concentrating samples
- G01N1/4055—Concentrating samples by solubility techniques
- G01N2001/4061—Solvent extraction
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- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention relates to an aquatic anionic surfactant tester, which comprises a machine shell and a bottom plate positioned at the bottom of the machine shell, wherein a turntable system is arranged on the bottom plate, a rotating tray for placing a plurality of sample cups is arranged on the turntable system, a mechanical arm capable of moving up and down is arranged above the rotating tray, and the mechanical arm is provided with a liquid extracting pipe for extracting extracted chloroform extract and an injection cleaning pipe for injecting pure water to clean the sample cups; the full-automatic measurement of the anionic surfactant in the sample is realized, the stability of water sample extraction is guaranteed, and all organic reagents are automatically added and waste liquid is collected in the extraction process, so that experimenters do not need to contact toxic organic reagents completely, humanized design is met, the working efficiency of the experimenters is improved, and manpower is effectively saved.
Description
Technical Field
The invention relates to the field of a device for testing anions in water, in particular to a tester for an anionic surfactant in water.
Background
At present, the national standard method of methylene blue spectrophotometry (GB 7494-87) for measuring the anionic surfactant in water is mostly adopted for measuring the content of the anionic surfactant in water in a laboratory, and aiming at the method, few and many problems exist in the instrument market for automatically measuring the anionic surfactant in water:
1. most of products for measuring the anionic surfactant in water in the market are manual measuring instruments, namely, the products can only be used for measuring the anionic surfactant by a spectrophotometry method, and cannot be used for pretreating a water sample. The artificial pretreatment of the water sample is required most of the time in the process of measuring the content of the anionic surfactant, and a large amount of organic reagents such as chloroform and the like are used in the pretreatment process of the water sample, so that the health of people is seriously influenced, and the risk of carcinogenesis is caused. In addition, the process adopts a separating funnel for manual extraction, so that the stability of a measuring result is poor, and time and labor are consumed.
2. In some automatic anionic surfactant measuring instruments in the market, an automatic sample injector mostly adopts a rotating disc type, a sample cup is fixed, and only one mechanical arm rotates to process different samples. Thereby limiting the number of sample bits in the autosampler.
3. Some automatic anionic surfactant measuring instruments in the market adopt a flow injection method, which is not completely carried out according to the national standard method of methylene blue spectrophotometry for measuring water anionic surfactants (GB 7494-37).
4. Some full-automatic instruments in the market only have the washing process of an extracting agent, and the constant volume process of the extracting agent is omitted.
5. Some full-automatic instruments in the market adopt split type separation and volume fixing cups, and the glassware is fragile, unsafe and reliable.
Disclosure of Invention
The invention aims to solve the technical problem of providing a tester for an anionic surfactant in water so as to solve the defects in the prior art.
The technical scheme for solving the technical problems is as follows:
the tester for the anionic surfactant in water comprises a machine shell and a bottom plate positioned at the bottom of the machine shell, wherein a turntable system is arranged on the bottom plate, a rotating tray for placing a plurality of sample cups is arranged on the turntable system, a mechanical arm capable of moving up and down is arranged above the rotating tray, and the mechanical arm is provided with a liquid extracting pipe for extracting extracted chloroform extract liquid and an injection cleaning pipe for injecting pure water to clean the sample cups; the liquid pumping pipe is communicated with the washing constant volume cup; the injection cleaning pipe is communicated with the pure water cup; the sample cup is respectively connected with the methylene blue reagent cup and the washing liquid cup through an electric three-way valve connected with a No. 1 peristaltic pump; organic reagent is added between the sample cup and the organic reagent bottle through a syringe pump 16 and a multi-way valve 11; the outside of the shell is connected with a computer control system through a mechanical arm, and the computer control system 8 is respectively connected with the turntable system 3, the peristaltic pump No. 1 14 and the electric three-way valve and used for controlling the actions of the peristaltic pump No. 1 and the electric three-way valve;
further, the liquid pumping pipe 5 is communicated with the sample cup and the washing containing cup 7 through a pipeline provided with a No. 2 peristaltic pump 15;
further, the injection cleaning tube 6 is communicated with the pure water cup and the sample cup through a pipeline provided with a diaphragm pump;
furthermore, a stirring motor No. 1 is integrated on the mechanical arm, a stirrer is arranged in the washing constant volume cup, and a stirring motor No. 2 is arranged at the lower part of the washing constant volume cup; the No. 1 stirring motor and the No. 2 stirring motor are electrically connected with a computer control system;
furthermore, the inner and outer cylinders of the washing volumetric cup are manufactured in an integrated processing mode;
furthermore, the washing volumetric cup, the injection pump 15 and the multi-way valve 11 are provided with a filtering membrane and a dewatering membrane which are connected in series;
furthermore, the front end of the injection pump is provided with a multi-way valve which is controlled by a computer control system to open and close, and the multi-way valve is provided with different channels which are respectively communicated with the external air and the extraction reagent bottle.
The invention has the beneficial effects that: the full-automatic measurement of the anionic surfactant in the sample is realized, the stability of water sample extraction is guaranteed, and all organic reagents are automatically added and waste liquid is collected in the extraction process, so that experimenters do not need to contact toxic organic reagents completely, humanized design is met, the working efficiency of the experimenters is improved, and manpower is effectively saved.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a rear view of the present invention;
FIG. 3 is a schematic side view of the present invention;
the reference numerals are explained below:
1. the device comprises a shell, a base plate, a turntable system, a mechanical arm, a liquid pumping pipe, a liquid injection cleaning pipe, a washing and containing cup, a computer control system, a filter membrane, a dewatering membrane, a multi-way valve, a stirring motor No. 12, a stirring motor No. 1, a stirring motor No. 13, a stirring motor No. 2, a peristaltic pump No. 14, a peristaltic pump No. 1, a peristaltic pump No. 16, a peristaltic pump No. 2, a syringe pump, a cover plate, a supporting rod and a liquid storage tank, wherein the base plate is arranged on the shell;
Detailed Description
The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention.
As shown in fig. 1, the apparatus for measuring anionic surfactant in water comprises a housing 1 and a bottom plate 2 located at the bottom of the housing 1, wherein a turntable system 3 is arranged on the bottom plate 2, a rotating tray for placing a plurality of sample cups is arranged on the turntable system 3, a mechanical arm 4 capable of moving up and down is arranged above the rotating tray, and the mechanical arm 4 is provided with a liquid extracting pipe 5 for extracting chloroform extract after extraction and an injection cleaning pipe 6 for injecting pure water to clean the sample cups; the liquid pumping pipe 5 is communicated with the washing containing cup 7; the injection cleaning pipe 6 is communicated with the pure water cup; the sample cup is respectively connected with a methylene blue reagent cup and a washing liquid cup through an electric three-way valve connected with a No. 1 peristaltic pump 14; organic reagents are added between the sample cup and the organic reagent bottle through an injection pump and a multi-way valve; the outside of the shell is connected with a computer control system through a mechanical arm, and the computer control system is respectively connected with the turntable system, the No. 1 peristaltic pump and the electric three-way valve and used for controlling the actions of the turntable system, the No. 1 peristaltic pump and the electric three-way valve;
more specifically, the liquid suction pipe 5 is communicated with the sample cup and the washing containing cup 7 through a pipeline provided with a No. 2 peristaltic pump 15;
more specifically, the injection cleaning tube 6 is communicated with the pure water cup and the sample cup through a pipeline provided with a diaphragm pump;
during specific work, the sample cup is placed into the turntable system, the turntable system is rotated to be above the sample cup at the No. 1 position of the rotating tray, the computer control system controls the mechanical arm to descend, the stirring rod, the liquid pumping pipe and the injection pipe enter the sample cup, the No. 1 peristaltic pump and the three-way valve are controlled to cooperate to pump a certain volume of detergent into the washing cup in the integrated washing constant volume cup, and the No. 1 peristaltic pump and the three-way valve cooperate to pump a certain volume of methylene blue into the sample; then, an injection pump is matched with the multi-way valve to extract a certain volume of organic reagent from the organic reagent port, then the multi-way valve is transferred to an injection pipeline connected with the mechanical arm, and the organic reagent is injected into the sample cup; starting a stirring motor for a certain time to stir and extract a water sample; starting a No. 2 peristaltic pump to pump the organic reagent in the sample cup into a washing cup in the integrated washing constant volume cup, and starting magnetic stirring to wash the organic reagent; then, through the matching of the injection pump and the multi-way valve, air with a certain volume is extracted from a pipeline connected with the constant volume cup, and the organic reagent is extracted from the washing cup to the constant volume cup by utilizing air pressure; repeating the steps for three times to finish the extraction process;
in another specific embodiment, a No. 1 stirring motor 12 is integrated on the mechanical arm 4, a stirrer is arranged in the washing holding cup 7, and a No. 2 stirring motor 13 is arranged at the lower part of the washing holding cup; the No. 1 stirring motor and the No. 2 stirring motor are electrically connected with the computer control system 8;
more specifically, the inner and outer cylinders of the washing volumetric cup are manufactured in an integrated processing mode;
more specifically, a filtering membrane and a dewatering membrane which are connected in series are arranged between the washing volumetric cup and the No. 2 injection pump and the multi-way valve;
more specifically, the front end of the injection pump 16 is provided with a multi-way valve 11 which is controlled to be opened and closed by the computer control system 8, the multi-way valve 11 is provided with different channels which are respectively communicated with external air and an extraction reagent bottle, and the multi-way valve is controlled to be opened according to different operations, so that extraction of the extraction reagent chloroform is realized or an organic reagent is extracted from a washing cup to a holding cup through air pressure to finish constant volume;
during specific work, an injection pump in the constant volume process extracts a certain volume of organic reagent and directly injects the organic reagent into a washing cup in the integrated washing constant volume cup, and a No. 2 stirring motor is started for a certain time to wash the organic reagent; then pumping a certain volume of air through a pipeline connected with the constant volume cup by using an injection pump, and pumping the organic reagent from the washing cup to the constant volume cup by using air pressure to complete constant volume; the injector extracts the organic solution in the constant volume cup, impurities in the organic solution are removed through the filtering membrane in the extraction process, and moisture is removed through the water removal membrane. And then injecting the extracted organic reagent into the cuvette by an injection pump and a multi-way valve, starting a light path system, and reading the absorbance of the organic solution in the cuvette by a computer on a host computer, thereby calculating the content of the anionic surfactant in the water sample. The water sample in the sample is discharged through the No. 2 peristaltic pump after the measurement is finished, the injection cleaning tube is cleaned, and the waste liquid is discharged.
Therefore, under the control of a computer control system, according to the measurement process, the turntable system continues to operate, and the mechanical arm also operates simultaneously, so that subsequent water samples are sequentially treated, the whole process is circularly and repeatedly operated, and the full-automatic multi-sample simultaneous circulating operation measurement of the anionic surfactant in water is realized.
For the convenience of maintenance, the front surface of the machine shell is provided with a hinged cover plate 17, and the cover plate 17 can be fixed by a support rod 18 when being opened;
the invention has the following advantages: can realize the water sample, the automatic extraction and the constant volume of reagent, whole process does not need artificial any intervention, has realized the full automatic measure of anion surfactant in the sample, has guaranteed the stability of water sample extraction to the extraction in-process organic reagent is whole automatic to be added and the waste liquid is collected, makes the experimenter need not contact poisonous organic reagent completely, has satisfied humanized design, has improved experimenter's work efficiency, and the effectual manpower of having saved.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (7)
1. The aquatic anionic surfactant apparatus, its characterized in that: the device comprises a shell and a bottom plate positioned at the bottom of the shell, wherein a turntable system is arranged on the bottom plate, a rotating tray for placing a plurality of sample cups is arranged on the turntable system, a mechanical arm capable of moving up and down is arranged above the rotating tray, and the mechanical arm is provided with a liquid extracting pipe for extracting chloroform extract liquid after extraction and an injection cleaning pipe for injecting pure water to clean the sample cups; the liquid pumping pipe is communicated with the washing constant volume cup; the injection cleaning pipe is communicated with the pure water cup; the sample cup is respectively connected with the methylene blue reagent cup and the washing liquid reagent cup through an electric three-way valve connected with a No. 1 peristaltic pump; the sample cup and the organic reagent bottle are matched through an injection pump and a multi-way valve to add an organic reagent; the outside of the casing is connected with a computer control system through a mechanical arm, and the computer control system is respectively connected with the turntable system, the No. 1 peristaltic pump and the electric three-way valve and used for controlling the actions of the turntable system, the No. 1 peristaltic pump and the electric three-way valve.
2. An anionic surfactant in water meter as claimed in claim 1 wherein: the mechanical arm is integrated with a No. 1 stirring motor, a stirrer is arranged in the washing constant volume cup, and a No. 2 stirring motor is arranged at the lower part of the washing constant volume cup; and the No. 1 stirring motor and the No. 2 stirring motor are electrically connected with a computer control system.
3. An anionic surfactant in water meter as claimed in claim 2 wherein: the liquid pumping pipe is communicated with the sample cup and the washing containing cup through a pipeline provided with a No. 2 peristaltic pump.
4. An anionic surfactant in water meter as claimed in claim 3 wherein: the injection cleaning pipe is communicated with the pure water cup and the sample cup through a pipeline provided with a diaphragm pump.
5. An anionic surfactant in water meter as claimed in claim 4 wherein: the inner and outer cylinders of the washing volumetric cup are manufactured in an integrated processing mode.
6. An anionic surfactant in water meter as claimed in claim 5 wherein: and a filtering membrane and a dewatering membrane which are connected in series are arranged in the matching system of the washing volume-determining cup, the injection pump and the multi-way valve.
7. An anionic surfactant in water meter as claimed in claim 6 wherein: the front end of the injection pump is provided with a multi-way valve which is controlled by a computer control system to open and close, and the multi-way valve is provided with different channels which are respectively communicated with the external air and an extraction reagent bottle interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911249161.3A CN110794157A (en) | 2019-12-09 | 2019-12-09 | Tester for anionic surfactant in water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911249161.3A CN110794157A (en) | 2019-12-09 | 2019-12-09 | Tester for anionic surfactant in water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110794157A true CN110794157A (en) | 2020-02-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911249161.3A Pending CN110794157A (en) | 2019-12-09 | 2019-12-09 | Tester for anionic surfactant in water |
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| CN (1) | CN110794157A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112903612A (en) * | 2021-01-26 | 2021-06-04 | 杭州绿洁环境科技股份有限公司 | Online analyzer for anionic surfactant |
| WO2022009458A1 (en) * | 2020-07-09 | 2022-01-13 | 株式会社日立ハイテク | Opening/closing lid device, and automatic analysis device comprising same |
-
2019
- 2019-12-09 CN CN201911249161.3A patent/CN110794157A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022009458A1 (en) * | 2020-07-09 | 2022-01-13 | 株式会社日立ハイテク | Opening/closing lid device, and automatic analysis device comprising same |
| JP7389719B2 (en) | 2020-07-09 | 2023-11-30 | 株式会社日立ハイテク | Opening/closing lid device and automatic analysis device equipped with the same |
| CN112903612A (en) * | 2021-01-26 | 2021-06-04 | 杭州绿洁环境科技股份有限公司 | Online analyzer for anionic surfactant |
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