CN202837170U - Element morphology analysis flow path system used for being combined with atomic fluorescence - Google Patents

Element morphology analysis flow path system used for being combined with atomic fluorescence Download PDF

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Publication number
CN202837170U
CN202837170U CN 201220163928 CN201220163928U CN202837170U CN 202837170 U CN202837170 U CN 202837170U CN 201220163928 CN201220163928 CN 201220163928 CN 201220163928 U CN201220163928 U CN 201220163928U CN 202837170 U CN202837170 U CN 202837170U
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China
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threeway
port
valve
carrying
gas
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Expired - Lifetime
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CN 201220163928
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Chinese (zh)
Inventor
高明义
杨波
杜春晖
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Beijing Purkinje General Instrument Co Ltd
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Beijing Purkinje General Instrument Co Ltd
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Abstract

The utility model provides an element morphology analysis flow path system used for being combined with atomic fluorescence. A third port of a chromatographic column three-way connector is communicated with a second port of a gas inlet three-way connector, a third port of the gas inlet three-way connector is communicated with one end of an ultraviolet digestion device, a third port of a reducing agent three-way connector is communicated with a second port of a flow-carrying three-way connector, and a third port of the flow-carrying three-way connector is communicated with a gas liquid separator. The element morphology analysis flow path system adopts a gas source as a power source, utilizes an accurate pressure reducing valve to control flow of the gas source and improves flow path liquid inlet stability and element measurement repeatability. The system reduces corrosion of instruments and pollution to the environment by full-closed processing on a solution bottle, simultaneously reduces volatilization or decomposition speed of solution, and improves long-time measurement stability of the instruments. The element morphology analysis flow path system used for being combined with atomic fluorescence is also suitable for an element morphology analysis flow path system being combined with atomic absorption.

Description

A kind of for the Elemental Speciation Analysis flow path system of atomic fluorescence coupling
Technical field
The utility model relate to a kind of for the Elemental Speciation Analysis flow path system of atomic fluorescence coupling, belong to Elemental Speciation Analysis flow path system technical field.
Background technology
The Elemental Speciation Analysis flow path system is the important component part of atomic fluorescence or Atomic absorption and liquid chromatography coupling, existing Elemental Speciation Analysis flow path system generally adopts the mechanical hook-ups such as peristaltic pump as power source, realize feed liquor by the extruding pump line, thereby produce three problems, first, as power source, will certainly cause wearing and tearing with mechanical hook-ups such as peristaltic pumps to pump line, make troubles for the maintenance of product.The second, as power source, can affect because power source is unstable, pump line wears out distortion stability and the accuracy of feed liquor with mechanical hook-ups such as peristaltic pumps.The 3rd, as power source, the liquid source apparatus can not seal with mechanical hook-ups such as peristaltic pumps, and solution and contact with air can be evaporated in the air, thereby apparatus structure is corroded.Existing Elemental Speciation Analysis flow path system, all be the manual stream that changes mostly, more advanced be that the moving four-way switching valve of armrest changes stream, thereby also can have problems, the first, the manual stream that changes is wasted time and energy the operability extreme difference, can only be used for experimental study, be difficult to form commercial instrument.The second, manually four-way switching valve changes the stream advanced person than manual, if test job person forgets that switching stream will cause feed liquor stream mistake, thereby so that stream is incorrect, solution advances not go, and causes pipeline to collapse out, and instrument is caused damage.
The utility model content
The purpose of this utility model is that existing Elemental Speciation Analysis flow path system is easy to wear in order to solve, stability and accuracy is relatively poor, the problem of easily apparatus structure being corroded, so provide a kind of for the Elemental Speciation Analysis flow path system of atomic fluorescence coupling.
The purpose of this utility model is achieved through the following technical solutions:
A kind of for the Elemental Speciation Analysis flow path system of atomic fluorescence coupling, comprise: source of the gas, two is logical, reduction valve, air source control valve, the source of the gas threeway, pressure gauge with digital display, seven is logical, the oxidizing agent solution bottle, a reductant solution bottle, the pure water bottle, the current-carrying solution bottle, No. two reductant solution bottles, the oxygenant operation valve, a reductive agent operation valve, the pure water operation valve, the current-carrying operation valve, No. two reductive agent operation valves, air intake control valve, four-way, the current-carrying threeway, the reductive agent threeway, the air inlet threeway, the chromatographic column threeway, the ultraviolet digestion device, chromatographic column, sampling valve, high pressure liquid phase pump and gas-liquid separator, described source of the gas is connected with two ends that lead to, the two logical other ends are connected with an end of reduction valve, the other end of reduction valve is connected with an end of air source control valve, the other end of air source control valve is connected with the inlet end of source of the gas threeway, the outlet side of source of the gas threeway is connected with seven inlet ends that lead to, the table end that connects of source of the gas threeway is connected with pressure gauge with digital display, seven logical other six ports respectively with the inlet end of oxidizing agent solution bottle, the inlet end of a reductant solution bottle, the inlet end of pure water bottle, the inlet end of current-carrying solution bottle, the inlet end of No. two reductant solution bottles and the inlet end of air intake control valve are connected, the endpiece of oxidizing agent solution bottle is connected with the entrance point of oxygenant operation valve, the endpiece of a reductant solution bottle is connected with the entrance point of a reductive agent operation valve, the endpiece of pure water bottle is connected with the entrance point of pure water operation valve, the endpiece of current-carrying solution bottle is connected with the entrance point of current-carrying operation valve, the endpiece of No. two reductant solution bottles is connected with the entrance point of No. two reductive agent operation valves, the endpiece of oxygenant operation valve, the endpiece of the endpiece of a reductive agent operation valve and pure water operation valve is connected with three ports of four-way respectively, the 4th port of four-way is connected with first port of chromatographic column threeway, the endpiece of current-carrying operation valve is connected with first port of current-carrying threeway, the endpiece of No. two reductive agent operation valves is connected with first port of reductive agent threeway, and the gas outlet of air intake control valve is connected with first port of air inlet threeway; The high pressure liquid phase pump is connected with an end of sampling valve, the other end of sampling valve is connected with an end of chromatographic column, the other end of chromatographic column is connected with second port of chromatographic column threeway, the 3rd port of chromatographic column threeway is connected with second port of air inlet threeway, the 3rd port of air inlet threeway is connected with an end of ultraviolet digestion device, the other end of ultraviolet digestion device is connected with second port of reductive agent threeway, the 3rd port of reductive agent threeway is connected with second port of current-carrying threeway, and the 3rd port of current-carrying threeway is connected with gas-liquid separator.
The utility model compared with prior art, have following four advantages: first, provide power to replace the mechanical hook-up such as peristaltic pump as power source with source of the gas, remove mechanical hook-up from and advanced not go liquid or the inconsistent problem of feed liquor amount to what the wearing and tearing of pump line caused, thereby exempted the maintenance work to pump line.The second, as power source, precise pressure-reducing valve is controlled the flow of source of the gas with source of the gas, and system pressure is very stable, thereby has improved the stability of stream feed liquor, has then improved the repeatability of elements are contained.The 3rd, solution bottle is carried out totally-enclosed processing, the solution in the solution bottle not with contact with air, do not have the volatile matter of used solution in the air, so can greatly reduce to the corrosion of instrument with to the pollution of environment.Also can reduce simultaneously volatilization or the decomposition rate of solution, thus the stability when the raising instrument is measured for a long time.The 4th, need not change stream when measuring different element, realized the unification of flow path system, the position of each solution bottle also need not be changed, for analytical test work provides great convenience, improved the accuracy of test data, reduced the damage of maloperation to instrument.
Description of drawings
Fig. 1 be the utility model a kind of for the annexation synoptic diagram of the Elemental Speciation Analysis flow path system of atomic fluorescence coupling.
Embodiment
Below in conjunction with accompanying drawing the utility model is described in further detail: present embodiment is implemented under take technical solutions of the utility model as prerequisite, has provided detailed embodiment, but protection domain of the present utility model is not limited to following embodiment.
As shown in Figure 1, present embodiment related a kind of for the Elemental Speciation Analysis flow path system of atomic fluorescence coupling, comprise: source of the gas 1, two logical 2, reduction valve 3, air source control valve 4, source of the gas threeway 5, pressure gauge with digital display 6, seven logical 7, oxidizing agent solution bottle 8, a reductant solution bottle 9, pure water bottle 10, current-carrying solution bottle 11, No. two reductant solution bottles 12, oxygenant operation valve 13, a reductive agent operation valve 14, pure water operation valve 15, current-carrying operation valve 16, No. two reductive agent operation valves 17, air intake control valve 18, four-way 19, current-carrying threeway 20, reductive agent threeway 21, air inlet threeway 22, chromatographic column threeway 23, ultraviolet digestion device 24, chromatographic column 25, sampling valve 26, high pressure liquid phase pump 27 and gas-liquid separator 28, described source of the gas 1 and an end of two logical 2 are connected, two logical 2 the other end is connected with an end of reduction valve 3, the other end of reduction valve 3 is connected with an end of air source control valve 4, the other end of air source control valve 4 is connected with the inlet end of source of the gas threeway 5, the outlet side of source of the gas threeway 5 and seven logical 7 inlet end are connected, the table end that connects of source of the gas threeway 5 is connected with pressure gauge with digital display 6, other six ports of seven logical 7 respectively with the inlet end of oxidizing agent solution bottle 8, the inlet end of a reductant solution bottle 9, the inlet end of pure water bottle 10, the inlet end of current-carrying solution bottle 11, the inlet end of the inlet end of No. two reductant solution bottles 12 and air intake control valve 18 is connected, the endpiece of oxidizing agent solution bottle 8 is connected with the entrance point of oxygenant operation valve 13, the endpiece of a reductant solution bottle 9 is connected with the entrance point of a reductive agent operation valve 14, the endpiece of pure water bottle 10 is connected with the entrance point of pure water operation valve 15, the endpiece of current-carrying solution bottle 11 is connected with the entrance point of current-carrying operation valve 16, the endpiece of No. two reductant solution bottles 12 is connected with the entrance point of No. two reductive agent operation valves 17, the endpiece of oxygenant operation valve 13, the endpiece of the endpiece of reductive agent operation valve 14 and pure water operation valve 15 is connected with three ports of four-way 19 respectively, the 4th port of four-way 19 is connected with first port of chromatographic column threeway 23, the endpiece of current-carrying operation valve 16 is connected with first port of current-carrying threeway 20, the endpiece of No. two reductive agent operation valves 17 is connected with first port of reductive agent threeway 21, and the gas outlet of air intake control valve 18 is connected with first port of air inlet threeway 22; High pressure liquid phase pump 27 is connected with an end of sampling valve 26, the other end of sampling valve 26 is connected with an end of chromatographic column 25, the other end of chromatographic column 25 is connected with second port of chromatographic column threeway 23, the 3rd port of chromatographic column threeway 23 is connected with second port of air inlet threeway 22, the 3rd port of air inlet threeway 22 is connected with an end of ultraviolet digestion device 24, the other end of ultraviolet digestion device 24 is connected with second port of reductive agent threeway 21, the 3rd port of reductive agent threeway 21 is connected with second port of current-carrying threeway 20, and the 3rd port of current-carrying threeway 20 is connected with gas-liquid separator 28.
Working-flow of the present utility model is divided into two kinds, is respectively to open the ultraviolet digestion device and do not open workflow under the ultraviolet digestion device, and two kinds of workflows all adopt same set of stream, need not manually switch fully.During work, also need not change the position of each solution bottle.
Working-flow one: 4, numbers reductive agent operation valves 14 of air source control valve, current-carrying operation valve 16 is all opened, and all the other valves cut out, and ultraviolet digestion device 24 is closed.
Sample is injected in the sample introduction valve 26 by syringe or other sampling device, under promoting, the pressure of high pressure liquid phase pump 27 enters chromatographic column 25, each component of sample is separated in chromatographic column 25, then pass through chromatographic column threeway 23, in chromatographic column threeway 23, mix with reductant solution in reductant solution bottle 9, the air inlet threeway 22 of jointly flowing through, ultraviolet digestion device 24, reductive agent threeway 21, current-carrying threeway 20, in current-carrying threeway 20, mix with current-carrying solution in the current-carrying solution bottle 11, reaction enters gas-liquid separator 28 jointly, generates gaseous hydride in gas-liquid separator 28.
Working-flow two: air source control valve 4, oxygenant operation valve 13,16, No. two reductive agent operation valves 17 of current-carrying operation valve, air intake control valve 18 is all opened, and all the other valves cut out, and ultraviolet digestion device 24 is opened.
Sample is injected in the sample introduction valve 26 by syringe or other sampling device, under promoting, the pressure of high pressure liquid phase pump 27 enters chromatographic column 25, each component of sample is separated in chromatographic column 25, then pass through chromatographic column threeway 23, in chromatographic column threeway 23, mix with oxidizing agent solution in the oxidizing agent solution bottle 8, the air inlet threeway 22 of jointly flowing through, in air inlet threeway 22, mix with the argon gas of coming in the air intake control valve 18, enter ultraviolet digestion device 24, at this moment, ultraviolet digestion device 24 has been unlocked, ultraviolet ray wherein makes solution generation oxidation or reduction reaction, the element morphology that the steam luminous efficiency is lower is converted into the element morphology with higher steam incidence, the out later on process reductive agent threeway 21 of sample that ultraviolet digestion is later, in reductive agent threeway 21, mix with reductant solution in No. two reductant solution bottles 12, the current-carrying threeway 20 of jointly flowing through, in current-carrying threeway 20, mix with current-carrying solution in the current-carrying solution bottle 11, reaction, jointly enter gas-liquid separator 28, in gas-liquid separator 28, generate gaseous hydride.
After experiment finishes, use pure water that pipeline is cleaned.During work, air source control valve 4, pure water operation valve 15 are all opened, and all the other valves cut out.Pure water in the pure water bottle 10 four-way 19 of flowing through, chromatographic column threeway 23, air inlet threeway 22, ultraviolet digestion device 24, reductive agent threeway 21, current-carrying threeway 20 enters gas-liquid separator 28, and the waste liquid mouth from gas-liquid separator 28 is discharged at last.
In the working-flow, solution in oxidizing agent solution bottle 8, reductant solution bottle 9, pure water bottle 10, current-carrying solution bottle 11, No. two reductant solution bottles 12 all adopts the mode of Pneumatic liquid feeding, by out argon gas control in seven logical 7, the size of liquid discharge liquid measure is by pressure, the time control of argon gas.The argon pressure size can be come minute adjustment by reduction valve 3, and pressure gauge with digital display 6 is realized the numeral of argon pressure size is shown.Oxygenant operation valve 13, reductive agent operation valve 14, pure water operation valve 15, current-carrying operation valve 16, No. two reductive agent operation valves 17 are realized respectively the control to oxidizing agent solution, reductant solution, pure water, current-carrying solution, No. two reductant solution break-makes.
The utility model is not only applicable to the Elemental Speciation Analysis flow path system with the atomic fluorescence spectrometer coupling, is applicable to the Elemental Speciation Analysis flow path system with Atomic absorption yet.

Claims (1)

1. Elemental Speciation Analysis flow path system that is used for the atomic fluorescence coupling, comprise: source of the gas, two is logical, reduction valve, air source control valve, the source of the gas threeway, pressure gauge with digital display, seven is logical, the oxidizing agent solution bottle, a reductant solution bottle, the pure water bottle, the current-carrying solution bottle, No. two reductant solution bottles, the oxygenant operation valve, a reductive agent operation valve, the pure water operation valve, the current-carrying operation valve, No. two reductive agent operation valves, air intake control valve, four-way, the current-carrying threeway, the reductive agent threeway, the air inlet threeway, the chromatographic column threeway, the ultraviolet digestion device, chromatographic column, sampling valve, high pressure liquid phase pump and gas-liquid separator, it is characterized in that, described source of the gas is connected with two ends that lead to, the two logical other ends are connected with an end of reduction valve, the other end of reduction valve is connected with an end of air source control valve, the other end of air source control valve is connected with the inlet end of source of the gas threeway, the outlet side of source of the gas threeway is connected with seven inlet ends that lead to, the table end that connects of source of the gas threeway is connected with pressure gauge with digital display, seven logical other six ports respectively with the inlet end of oxidizing agent solution bottle, the inlet end of a reductant solution bottle, the inlet end of pure water bottle, the inlet end of current-carrying solution bottle, the inlet end of No. two reductant solution bottles and the inlet end of air intake control valve are connected, the endpiece of oxidizing agent solution bottle is connected with the entrance point of oxygenant operation valve, the endpiece of a reductant solution bottle is connected with the entrance point of a reductive agent operation valve, the endpiece of pure water bottle is connected with the entrance point of pure water operation valve, the endpiece of current-carrying solution bottle is connected with the entrance point of current-carrying operation valve, the endpiece of No. two reductant solution bottles is connected with the entrance point of No. two reductive agent operation valves, the endpiece of oxygenant operation valve, the endpiece of the endpiece of a reductive agent operation valve and pure water operation valve is connected with three ports of four-way respectively, the 4th port of four-way is connected with first port of chromatographic column threeway, the endpiece of current-carrying operation valve is connected with first port of current-carrying threeway, the endpiece of No. two reductive agent operation valves is connected with first port of reductive agent threeway, and the gas outlet of air intake control valve is connected with first port of air inlet threeway; The high pressure liquid phase pump is connected with an end of sampling valve, the other end of sampling valve is connected with an end of chromatographic column, the other end of chromatographic column is connected with second port of chromatographic column threeway, the 3rd port of chromatographic column threeway is connected with second port of air inlet threeway, the 3rd port of air inlet threeway is connected with an end of ultraviolet digestion device, the other end of ultraviolet digestion device is connected with second port of reductive agent threeway, the 3rd port of reductive agent threeway is connected with second port of current-carrying threeway, and the 3rd port of current-carrying threeway is connected with gas-liquid separator.
CN 201220163928 2012-04-17 2012-04-17 Element morphology analysis flow path system used for being combined with atomic fluorescence Expired - Lifetime CN202837170U (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104678027A (en) * 2015-02-04 2015-06-03 天津科技大学 Rapid multi-mode element speciation analysis pretreatment system
CN106442815A (en) * 2016-11-15 2017-02-22 成都市食品药品检验研究院 Integrated speciation and aggregate analysis atomic fluorescence sample feeding and pre-treating system
CN107179359A (en) * 2017-05-02 2017-09-19 维科托(北京)科技有限公司 Flow path system for liquid chromatogram atomic fluorescence combined instrument
WO2020087891A1 (en) * 2018-10-29 2020-05-07 重庆民泰新农业科技发展集团有限公司 Water-carrying atomic fluorescence analysis device and atomic fluorescence analysis method

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104678027A (en) * 2015-02-04 2015-06-03 天津科技大学 Rapid multi-mode element speciation analysis pretreatment system
CN106442815A (en) * 2016-11-15 2017-02-22 成都市食品药品检验研究院 Integrated speciation and aggregate analysis atomic fluorescence sample feeding and pre-treating system
CN106442815B (en) * 2016-11-15 2019-03-15 成都市食品药品检验研究院 Integral type form and macroanalysis atomic fluorescence sample introduction and pretreatment system
CN107179359A (en) * 2017-05-02 2017-09-19 维科托(北京)科技有限公司 Flow path system for liquid chromatogram atomic fluorescence combined instrument
WO2020087891A1 (en) * 2018-10-29 2020-05-07 重庆民泰新农业科技发展集团有限公司 Water-carrying atomic fluorescence analysis device and atomic fluorescence analysis method

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