CN204439551U - For the vapor generation system of atomic fluorescence spectrometer - Google Patents

For the vapor generation system of atomic fluorescence spectrometer Download PDF

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Publication number
CN204439551U
CN204439551U CN201520092350.5U CN201520092350U CN204439551U CN 204439551 U CN204439551 U CN 204439551U CN 201520092350 U CN201520092350 U CN 201520092350U CN 204439551 U CN204439551 U CN 204439551U
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Prior art keywords
reagent
sample
pump
gas
mixed reactor
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CN201520092350.5U
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Chinese (zh)
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李明章
杜江
宫博
刘海涛
李崇江
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BEIJING HAIGUANG INSTRUMENT Co Ltd
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BEIJING HAIGUANG INSTRUMENT Co Ltd
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Abstract

The utility model relates to a kind of vapor generation system for atomic fluorescence spectrometer, comprise the reagent drawing-in system receiving testing sample, mixed reactor and gas-liquid separation device, also comprise the peristaltic pump be arranged between reagent drawing-in system and mixed reactor and the syringe pump being arranged on reagent drawing-in system side, described syringe pump controls reagent drawing-in system and quantitatively draws testing sample, described peristaltic pump has the testing sample in reagent drawing-in system and the pump line reductive agent of outside being delivered to mixed reactor, mixed reactor by reacted substance use to gas-liquid separation device, gas-liquid separation device by discharging of waste liquid to waste liquid bottle.The beneficial effects of the utility model are: adopt syringe pump and peristaltic pump coupling technique, syringe pump is utilized quantitatively to draw sample to reagent drawing-in system, then by peristaltic pump, sample is pushed in reaction unit, eliminate hyperchannel cross-over valve, there is saving reagent, test speed is fast, and work efficiency is high, reduce memory effect, reduce reagent to features such as the corrosion of instrument.

Description

For the vapor generation system of atomic fluorescence spectrometer
Technical field
The utility model relates to a kind of vapor generation system for atomic fluorescence spectrometer.
Background technology
As everyone knows, atomic fluorescence spectrometer is one of China's minority analytical instrument with independent intellectual property right, the atomic fluorescence level of China is in rank first, and atomic fluorescence spectrometer domestic at present nearly all adopts steam generation technique, thus steam generating system is one of the important component part and gordian technique of atomic fluorescence device.
Sample incorporation way in the steam generating system of atomic fluorescence spectrometer in the market generally adopts peristaltic pump or syringe pump, and wherein peristaltic pump exists the problem such as sample introduction low precision, pulsation interference; And syringe pump of the prior art exists following two problems: problem one, although sample introduction precision is high, need to use unidirectional cross-over valve, detected sample is that corrosive liquids flows through valve body, thus there is the shortcomings such as perishable, measuring speed is slow; Problem two can't realize on-line cleaning, there is residual and memory effect, easily brings cross pollution.
Because above-mentioned defect, the design people, actively in addition research and innovation, to founding a kind of vapor generation system for atomic fluorescence spectrometer, make it have more value in industry.
Utility model content
For solving the problems of the technologies described above, the purpose of this utility model is to provide a kind of syringe pump and peristaltic pump coupling technique, syringe pump is utilized quantitatively to draw sample to reagent drawing-in system, the interference of sample introduction precision high and pulse free, then by peristaltic pump, sample is incorporated in reaction unit, eliminates cross-over valve, there is saving reagent, test speed is fast, reduce the advantages such as memory and corrosion, can be widely used in the vapor generation system of atomic fluorescence spectrometer.
Vapor generation system for atomic fluorescence spectrometer of the present utility model, comprise the reagent drawing-in system receiving testing sample, mixed reactor and gas-liquid separation device, also comprise the peristaltic pump be arranged between reagent drawing-in system and mixed reactor and the syringe pump being arranged on reagent drawing-in system side, described syringe pump controls reagent drawing-in system and quantitatively draws testing sample, described peristaltic pump has the testing sample in reagent drawing-in system and the pump line reductive agent of outside being delivered to mixed reactor, mixed reactor by reacted substance use to gas-liquid separation device, gas-liquid separation device by discharging of waste liquid to waste liquid bottle.
Further, the pump line of described peristaltic pump comprises the sample pump line that is connected with described reagent drawing-in system and the reductive agent pump line for the reductive agent that circulates, between described syringe pump with reagent drawing-in system, between sample pump line with reagent drawing-in system, by valve connection control, it is communicated with or closes, wherein, one end of described sample pump line is connected with reagent drawing-in system, the other end is connected with the sample input port of mixed reactor, one end of described reductive agent pump line is connected with reducer bottle, and the other end is connected with the reductive agent input port of mixed reactor.
Further, the carrier gas input port of described mixed reactor is connected with gas-carrier pipeline, and be argon gas (Ar) in gas-carrier pipeline, the delivery outlet of described mixed reactor is connected with the import of gas-liquid separation device by pipeline.
Further, described reagent drawing-in system comprises kapillary and multiport valve, and one end of kapillary is stretched in sample cup, and the other end of kapillary is connected with the A interface of multiport valve, the B interface of multiport valve is connected with described syringe pump, and the C interface of multiport valve is connected with described sample pump line.
Further, described reagent drawing-in system comprises kapillary and threeway, and one end of kapillary is stretched in sample cup, and the other end of kapillary is connected with the A interface of threeway, the B interface of threeway is connected with described syringe pump, and the C interface of threeway is connected by pipeline with described sample pump line.
Further, the described pipeline be connected with sample pump line with the C interface of threeway is provided with pinch valve.
Further, the waste liquid outlet of described gas-liquid separation device bottom is connected with waste liquid bottle by pipeline, and the top of gas-liquid separation device is provided with steam (vapor) outlet.
Further, also comprise the container being contained with clean solution, when reagent drawing-in system draws quantitative testing sample, one end of described kapillary is stretched in this container.
Compared with prior art, the utility model at least has the following advantages:
1, syringe pump and peristaltic pump coupling technique is adopted, fully utilize the advantage of sample injection and peristaltic pump sample introduction, syringe pump is utilized quantitatively to draw sample to reagent drawing-in system, the interference of sample introduction precision high and pulse free, then by peristaltic pump, sample is pushed in reaction unit, eliminate cross-over valve, stopped the corrosion of sample to valve body, have simultaneously and save that reagent, test speed are fast, work efficiency advantages of higher.
2, when reagent drawing-in system draws quantitative testing sample, one end of described kapillary is stretched in this container, sucks clean solution, realizes on-line cleaning, decrease the corrosion of reagent to instrument, decrease memory effect and cross pollution simultaneously;
3, measuring speed is fast, has the advantage of syringe pump and peristaltic pump concurrently;
4, structure and pipeline are simply, cheer and bright;
5, safe and reliable, failure rate is low.
Above-mentioned explanation is only the general introduction of technical solutions of the utility model, in order to better understand technological means of the present utility model, and can be implemented according to the content of instructions, coordinates accompanying drawing to be described in detail as follows below with preferred embodiment of the present utility model.
Accompanying drawing explanation
Fig. 1 is the structural representation of the vapor generation system for atomic fluorescence spectrometer described in the utility model embodiment 1;
Fig. 2 is the structural representation of the vapor generation system for atomic fluorescence spectrometer described in the utility model embodiment 2;
Fig. 3 is the structural representation of the vapor generation system for atomic fluorescence spectrometer described in the utility model embodiment 3.
Embodiment
Below in conjunction with drawings and Examples, embodiment of the present utility model is described in further detail.Following examples for illustration of the utility model, but are not used for limiting scope of the present utility model.
Embodiment 1
See Fig. 1, a kind of vapor generation system for atomic fluorescence spectrometer described in the utility model one preferred embodiment, comprises receiving the reagent drawing-in system 1 of testing sample, is arranged on the peristaltic pump 6 between reagent drawing-in system 1 and mixed reactor 2 and is arranged on the syringe pump 4 of reagent drawing-in system 1 side.Described syringe pump 4 controls reagent drawing-in system 1 and quantitatively draws testing sample, described peristaltic pump 6 has the testing sample in reagent drawing-in system 1 and the pump line reductive agent of outside being delivered to mixed reactor 2, mixed reactor 2 by reacted substance use to gas-liquid separation device 3, gas-liquid separation device 3 by discharging of waste liquid to waste liquid bottle 7.
The pump line of described peristaltic pump 6 comprises the sample pump line 61 that is connected with described reagent drawing-in system 1 and the reductive agent pump line 62 for the reductive agent that circulates, by valve connection control, it is communicated with or closes described syringe pump 4 with between reagent drawing-in system 1, between sample pump line 61 with reagent drawing-in system 1, wherein, one end of described sample pump line 61 is connected with reagent drawing-in system 1, the other end is connected with the sample input port A of mixed reactor 2, one end of described reductive agent pump line 62 is connected with reducer bottle 7, and the other end is connected with the reductive agent input port B of mixed reactor 2.
Sample pump line 61 and reductive agent pump line 62 is provided with in described peristaltic pump 6, one end of described sample pump line 61 is connected with reagent drawing-in system 1, the other end is connected with the sample input port A of mixed reactor 2, one end of described reductive agent pump line 62 is connected with reducer bottle 7, and the other end is connected with the reductive agent input port B of mixed reactor 2.
The carrier gas input port C of described mixed reactor 2 is connected with gas-carrier pipeline 10, and be argon gas (Ar) in gas-carrier pipeline 10, the delivery outlet D of mixed reactor 2 is connected with the import 33 of gas-liquid separation device 3 by pipeline.
Described reagent drawing-in system 1 comprises kapillary 11 and multiport valve 12, one end of kapillary 11 is stretched in sample cup 5, the other end of kapillary 11 is connected with the A interface of multiport valve 12, and the B interface of multiport valve 12 is connected with described syringe pump 4, and the C interface of multiport valve 12 is connected with described sample pump line 61.
The waste liquid outlet 31 of described gas-liquid separation device 3 bottom is connected with waste liquid bottle 8 by pipeline, be connected in waste liquid bottle 8 via power waste discharge or gravity waste discharge, the top of gas-liquid separation device 3 is provided with steam (vapor) outlet 32, and steam exports atomizer by steam (vapor) outlet 32 to after secondary gas-liquid separator.
The utility model also comprises the container (not shown) being contained with clean solution, and when reagent drawing-in system 1 draws quantitative testing sample, one end of described kapillary 11 is stretched in this container.
The course of work of the present utility model is as follows:
The first step: kapillary 11 (kapillary employing quantitative capillary tube) is inserted in the sample solution in the required sample cup 5 measured by manual or dependence automatic sampler;
Second step: connect the A interface of multiport valve 12, B interface and C interface;
3rd step: syringe pump 4 is descending to be drawn quantitative sample and be stored in kapillary 11;
4th step: kapillary 11 is inserted in cleaning solution by manual or dependence automatic sampler, connects A interface and the C interface of multiport valve 12;
5th step: peristaltic pump 6 rotates, is incorporated in mixed reactor 2 through sample pump line 61 and reductive agent pump line 62 by quantitative sample and reductive agent simultaneously respectively, chemical reaction occurs, generates the gaseous compound of tested element;
6th step: gaseous component and other material of generation enter gas-liquid separation device 3 and be separated, and required gaseous component is carried into atomizing apparatus by argon gas, waste liquid is discharged by power or gravity is discharged automatically.
7th step: B interface and the C interface of connecting multiport valve 12;
8th step: peristaltic pump 6 rotates, syringe pump 4 is up simultaneously, is released by the cleaning fluid in syringe, completes cleaning, measures and terminates.
Embodiment 2
See Fig. 2, the difference of the utility model one preferred embodiment and embodiment 1 is: described reagent drawing-in system 1 comprises kapillary 11 and threeway 13, one end of kapillary 11 is stretched in sample cup 5, the other end of kapillary 11 is connected with the A interface of threeway 13, the B interface of threeway 13 is connected with described syringe pump 4, and the C interface of threeway 13 is connected by pipeline with described sample pump line 61.The described pipeline be connected with sample pump line 61 with the C interface of threeway 13 is provided with pinch valve 9.
The course of work of the present utility model is as follows:
The first step: kapillary 11 is inserted in the sample solution in the required sample cup 5 measured by manual or dependence automatic sampler;
Second step: pinch valve 9 closes;
3rd step: syringe pump 4 draws quantitative sample and is stored in kapillary 11;
4th step: kapillary 11 is inserted in cleaning solution by manual or dependence automatic sampler;
5th step: pinch valve 9 is opened;
6th step: peristaltic pump 6 rotates, is incorporated in mixed reactor 2 by quantitative sample and reductive agent through pump sample pump line 61 and reductive agent pump line 62 simultaneously, chemical reaction occurs, generates the gaseous compound of tested element;
7th step: gaseous component and other material of generation enter gas-liquid separation device 33 and be separated, and required gaseous component is carried into atomizing apparatus by argon gas, waste liquid is discharged by power or is automatically discharged.
8th step: peristaltic pump 6 rotates, syringe pump 4 is up simultaneously, is released by the cleaning fluid in syringe, completes cleaning, measures and terminates.
Embodiment 3
See Fig. 3, the difference of the utility model one preferred embodiment and embodiment 2 is: eliminate pinch valve 9, and its process is identical with embodiment 2.
In sum, the utility model quantitatively draws sample to reagent drawing-in system by syringe pump, have employed syringe pump make sample introduction precision high and pulsation interference can not be produced, after drawing sample, stretching into of kapillary is filled in clean solution container, suck clean solution, then by peristaltic pump, sample is pushed in mixed reactor, eliminate cross-over valve in this process, stopped the corrosion of sample to valve body, there is saving sample simultaneously; The substance use generated after reaction in mixed reactor is separated to gas-liquid separation device, simultaneously, clean solution container enters mixed reactor through the pump line of peristaltic pump, existing on-line cleaning, decrease reagent to corrosion together, decrease memory effect and cross pollution, integrated testability speed is fast, and work efficiency is high simultaneously.
The above is only preferred implementation of the present utility model; be not limited to the utility model; should be understood that; for those skilled in the art; under the prerequisite not departing from the utility model know-why; can also make some improvement and modification, these improve and modification also should be considered as protection domain of the present utility model.

Claims (8)

1. the vapor generation system for atomic fluorescence spectrometer, comprise the reagent drawing-in system receiving testing sample, mixed reactor and gas-liquid separation device, it is characterized in that: also comprise the peristaltic pump be arranged between reagent drawing-in system and mixed reactor and the syringe pump being arranged on reagent drawing-in system side, described syringe pump controls reagent drawing-in system and quantitatively draws testing sample, described peristaltic pump has the testing sample in reagent drawing-in system and the pump line reductive agent of outside being delivered to mixed reactor, mixed reactor by reacted substance use to gas-liquid separation device, gas-liquid separation device by discharging of waste liquid to waste liquid bottle.
2. the vapor generation system for atomic fluorescence spectrometer according to claim 1, it is characterized in that: the pump line of described peristaltic pump comprises the sample pump line that is connected with described reagent drawing-in system and the reductive agent pump line for the reductive agent that circulates, between described syringe pump and reagent drawing-in system, between sample pump line with reagent drawing-in system, by valve connection control, it is communicated with or closes, wherein, one end of described sample pump line is connected with reagent drawing-in system, the other end is connected with the sample input port of mixed reactor, one end of described reductive agent pump line is connected with reducer bottle, the other end is connected with the reductive agent input port of mixed reactor.
3. the vapor generation system for atomic fluorescence spectrometer according to claim 2, it is characterized in that: the carrier gas input port of described mixed reactor is connected with gas-carrier pipeline, be argon gas in gas-carrier pipeline, the delivery outlet of described mixed reactor is connected with the import of gas-liquid separation device by pipeline.
4. the vapor generation system for atomic fluorescence spectrometer according to claim 2, it is characterized in that: described reagent drawing-in system comprises kapillary and multiport valve, one end of kapillary is stretched in sample cup, the other end of kapillary is connected with the A interface of multiport valve, the B interface of multiport valve is connected with described syringe pump, and the C interface of multiport valve is connected with described sample pump line.
5. the vapor generation system for atomic fluorescence spectrometer according to claim 2, it is characterized in that: described reagent drawing-in system comprises kapillary and threeway, one end of kapillary is stretched in sample cup, the other end of kapillary is connected with the A interface of threeway, the B interface of threeway is connected with described syringe pump, and the C interface of threeway is connected by pipeline with described sample pump line.
6. the vapor generation system for atomic fluorescence spectrometer according to claim 5, is characterized in that: the described pipeline be connected with sample pump line with the C interface of threeway is provided with pinch valve.
7. the vapor generation system for atomic fluorescence spectrometer according to claim 1, is characterized in that: the waste liquid outlet of described gas-liquid separation device bottom is connected with waste liquid bottle by pipeline, and the top of gas-liquid separation device is provided with steam (vapor) outlet.
8. the vapor generation system for atomic fluorescence spectrometer according to claim 5, it is characterized in that: the described vapor generation system for atomic fluorescence spectrometer also comprises the container being contained with clean solution, when reagent drawing-in system draws quantitative testing sample, one end of described kapillary is stretched in this container.
CN201520092350.5U 2015-02-10 2015-02-10 For the vapor generation system of atomic fluorescence spectrometer Active CN204439551U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107389547A (en) * 2017-06-26 2017-11-24 北京海光仪器有限公司 Intelligent environmental protection type light source drift corrects AFS automatically

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107389547A (en) * 2017-06-26 2017-11-24 北京海光仪器有限公司 Intelligent environmental protection type light source drift corrects AFS automatically

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