CN213041738U - Separation and enrichment residue-free vapor generation system of atomic fluorescence spectrometer - Google Patents

Abstract

A separation and enrichment residue-free steam generation system of an atomic fluorescence spectrometer is characterized in that a sample disc (2) and an injection pump (13) are connected with an electromagnetic valve (7), a reducing agent bottle (4) and the electromagnetic valve (7) are respectively connected into a reactor (9) through the middle section of a peristaltic pump (6), the reactor (9) is further connected into a primary gas-liquid separator (10), and the primary gas-liquid separator (10) is connected into a waste liquid bottle (5) through the lower section of the peristaltic pump (6). The separation and enrichment system is obtained by adopting a combined sampling structure mode of an injection pump and a peristaltic pump, and the technical defects of the conventional intermittent flow sampling device and the sequential flow injection can be improved. The sample ration is accurate, can realize single concentration point automatic configuration standard, and sample dispersion controlled degree is higher, and is not remained, and steam takes place to react more fully, and gas-liquid separation effect is better, saves reagent, reduces the corruption of reagent to the instrument, and testing speed is fast, reduces memory effect, improves the sensitivity of instrument, improves precision and detection limit to gain better analysis effect.

Description

Separation and enrichment residue-free vapor generation system of atomic fluorescence spectrometer

Technical Field

The utility model relates to an atomic fluorescence spectrometer's vapour generating device's institutional advancement technology, especially atomic fluorescence spectrometer's separation enrichment does not have residual vapour generating system.

Background

The atomic fluorescence photometer uses inert gas argon as carrier gas, gaseous hydride, excessive hydrogen and the carrier gas are mixed and then introduced into a heated atomization device, the hydrogen and the argon are burnt and heated in a special flame device, the hydride is heated and then rapidly decomposed, and the detected element is dissociated into ground state atomic vapor, wherein the ground state atomic weight is several orders of magnitude higher than that generated by simply heating elements such as arsenic, antimony, bismuth, tin, selenium, tellurium, lead, germanium and the like.

At present, an atomic fluorescence vapor generation system adopts peristaltic pump sampling, the best mode is a double peristaltic pump sampling mode, but a syringe pump sampling mode is rarely adopted. However, the peristaltic pump cannot perform precise quantitative sampling, cannot realize single-concentration-point automatic configuration standard series, cannot realize advanced automatic functions such as automatic dilution of high-concentration samples on line, has low sample dispersion control degree and small residual part, has general vapor reaction conditions and gas-liquid separation effects, and can only basically meet the requirements of test analysis on sensitivity, precision and detection limit of the instrument.

In addition, the existing syringe pump type structure requires switching of a multi-channel switching valve. The pipeline system consumes a large amount of reagents, has slow testing speed, low working efficiency, partial memory effect and large reagent sample volume, and seriously corrodes instruments.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an atomic fluorescence spectrometer's separation enrichment does not have residual vapor generation system, solves above prior art problem.

The purpose of the utility model is realized by the following technical measures: comprises a sample disc, a reducing agent bottle, a waste liquid bottle, a peristaltic pump, an electromagnetic valve, a reactor, a primary gas-liquid separator and an injection pump; the sample disc and the injection pump are connected with an electromagnetic valve, the reducing agent bottle and the electromagnetic valve are respectively connected into the reactor through the middle section of the peristaltic pump, the reactor is further connected into a primary gas-liquid separator, and the primary gas-liquid separator is connected into the waste liquid bottle through the lower section of the peristaltic pump.

Particularly, the top of the peristaltic pump is connected with a carrier bottle through an access pipeline, and is connected with a carrier tank through an output pipeline section at the top of the peristaltic pump.

In particular, a peristaltic pump is equipped with a fluid drive module.

In particular, a shut-off valve is installed between the solenoid valve and the peristaltic pump.

In particular, the reactor is connected to a carrier gas inlet 8 via a section of the inlet line.

Particularly, the top of the first-stage gas-liquid separator is connected with an outlet pipeline to the second-stage gas-liquid separator, and the top of the second-stage gas-liquid separator is connected with an outlet pipeline to the atomizer.

In particular, the syringe pump is a metering pump.

Particularly, a pipeline led out from the bottom of the primary gas-liquid separator is output to a waste liquid bottle through a tee joint arranged at the bottom of the peristaltic pump.

In particular, a pinch valve is installed on a line from the syringe pump to the solenoid valve.

The utility model discloses an advantage and effect: the sample ration is accurate, can realize single concentration point automatic configuration standard, and sample dispersion controlled degree is higher, and is not remained, and steam takes place to react more fully, and gas-liquid separation effect is better, saves reagent, reduces the corruption of reagent to the instrument, and testing speed is fast, reduces memory effect, improves the sensitivity of instrument, improves precision and detection limit to gain better analysis effect.

Drawings

Fig. 1 is a schematic structural diagram of embodiment 1 of the present invention.

Fig. 2 is a schematic structural diagram of embodiment 2 of the present invention.

The reference numerals include:

the device comprises a flow carrying groove 1, a sample disc 2, a flow carrying bottle 3, a reducing agent bottle 4, a waste liquid bottle 5, a peristaltic pump 6, an electromagnetic valve 7, a carrier gas inlet pipe 8, a reactor 9, a primary gas-liquid separator 10, a secondary gas-liquid separator 11, an atomizer 12, an injection pump 13, a pinch valve 14 and a tee joint 15.

Detailed Description

The utility model discloses the principle lies in, adopts syringe pump + peristaltic pump to ally oneself with and uses the appearance structural style, obtains the separation enrichment system, can improve the technical defect that current intermittent flow sampling device and sequence flow injection exist. The injection pump is utilized to quantitatively draw a sample into the reagent introducing system, and then the sample is pushed into the reaction device by the peristaltic pump, so that a multi-channel change-over valve can be omitted, a single-concentration-point automatic configuration standard series can be realized, advanced automatic functions such as automatic dilution and the like can be performed on the high-concentration sample on line, and the dispersion controlled degree of the sample is higher.

The utility model is used for among the vapour generation system of atomic fluorescence spectrum appearance.

The utility model discloses a: the device comprises a sample disc 2, a reducing agent bottle 4, a waste liquid bottle 5, a peristaltic pump 6, an electromagnetic valve 7, a reactor 9, a primary gas-liquid separator 10 and an injection pump 13.

The present invention will be further explained with reference to the drawings and examples.

Example 1: as shown in attached figure 1, a sample disc 2 and an injection pump 13 are connected with an electromagnetic valve 7, a reducing agent bottle 4 and the electromagnetic valve 7 are respectively connected into a reactor 9 through the middle section of a peristaltic pump 6, the reactor 9 is further connected into a primary gas-liquid separator 10, and the primary gas-liquid separator 10 is connected into a waste liquid bottle 5 through the lower section of the peristaltic pump 6.

In the foregoing, the top of the peristaltic pump 6 is connected with the carrier flow bottle 3 through an access pipeline, and is connected with the carrier flow groove 1 through an output pipeline at one section through the top of the peristaltic pump 6.

In the foregoing, the peristaltic pump 6 is provided with a fluid driving module.

In the foregoing, a shutoff valve is installed between the electromagnetic valve 7 and the peristaltic pump 6.

In the foregoing, the reactor 9 is connected to the carrier gas inlet pipe 8 through a section of access pipe.

In the foregoing, the top of the first-stage gas-liquid separator 10 is connected to the second-stage gas-liquid separator 11, and the top of the second-stage gas-liquid separator 11 is connected to the atomizer 12.

In the foregoing, the syringe pump 13 is a metering pump.

In the above, the pipeline led out from the bottom of the primary gas-liquid separator 10 is output to the waste liquid bottle 5 through the tee 15 installed at the bottom of the peristaltic pump 6.

The embodiment of the utility model provides an in, whole equipment can divide into the reagent introducing system, the mixed reaction system and the gas-liquid separation system triplex that are used for accomodating the sample that awaits measuring, wherein, especially peristaltic pump 6 between reagent introducing system and mixed reaction unit and the setting set up syringe pump 13 that has the accurate measurement function in reagent introducing system one side, syringe pump 13 can effectively control reagent introducing system and draw the sample that awaits measuring from the sample dish ration, peristaltic pump 6 with the sample that awaits measuring in the reagent introducing system and carry outside reductant to reactor 9 and carry out the mixing reaction, reactor 9 carries the material after the reaction to one-level vapour and liquid separator 10, second grade vapour and liquid separator 11, and wherein, one-level vapour and liquid separator 10 discharges the waste liquid to waste liquid bottle 5.

The embodiment of the utility model provides an in, because injection pump 13 adopts the measuring pump, vapour takes place sampling system and does not have and remains, and the sample ration is accurate, can realize single concentration point automatic configuration standard. The method is convenient and further, and can automatically dilute the high-concentration sample on line to achieve the sample dispersion effect with higher controlled degree.

The embodiment of the utility model provides an in, even can not influence the sampling precision after long-term work causes peristaltic pump 6's fluid drive module to age.

In the embodiment of the utility model, when the system works, the stop valve is firstly cut off, and the injection pump 13 accurately extracts the required reagent from the sample feeding pipeline; then the stop valve is closed, and the fluid in the sample feeding pipeline is conveyed out through the fluid driving module of the peristaltic pump 6.

Example 2: as shown in fig. 2, a pinch valve 14 is installed on a line from the syringe pump 13 to the solenoid valve 7.

In the embodiment of the utility model provides an in, can further accurate system advance kind standard through pinch valve 14.

Claims (9)

1. A separation and enrichment residue-free vapor generation system of an atomic fluorescence spectrometer comprises a sample disc (2), a reducing agent bottle (4), a waste liquid bottle (5), a peristaltic pump (6), an electromagnetic valve (7), a reactor (9), a primary gas-liquid separator (10) and an injection pump (13); the device is characterized in that a sample disc (2) and an injection pump (13) are connected with an electromagnetic valve (7), a reducing agent bottle (4) and the electromagnetic valve (7) are respectively connected into a reactor (9) through the middle section of a peristaltic pump (6), the reactor (9) is further connected into a primary gas-liquid separator (10), and the primary gas-liquid separator (10) is connected into a waste liquid bottle (5) through the lower section of the peristaltic pump (6).

2. The system for separating, enriching and generating vapor without residue of atomic fluorescence spectrometer as claimed in claim 1, wherein the top of the peristaltic pump (6) is connected to the carrier bottle (3) through an inlet pipe, and is connected to the carrier flow tank (1) through an outlet pipe section through the top of the peristaltic pump (6).

3. The separation and enrichment residue-free vapor generation system of the atomic fluorescence spectrometer as claimed in claim 1, wherein the peristaltic pump (6) is provided with a fluid driving module.

4. The separation and enrichment residue-free vapor generation system of the atomic fluorescence spectrometer as set forth in claim 1, wherein a shut-off valve is installed between the solenoid valve (7) and the peristaltic pump (6).

5. The separation and enrichment residue-free vapor generation system of the atomic fluorescence spectrometer as claimed in claim 1, wherein the reactor (9) is connected to the carrier gas inlet pipe (8) through a section of access line.

6. The separation and enrichment residue-free vapor generation system of the atomic fluorescence spectrometer as claimed in claim 1, wherein the top of the primary gas-liquid separator (10) is connected to the secondary gas-liquid separator (11), and the top of the secondary gas-liquid separator (11) is connected to the atomizer (12).

7. The separation and enrichment residue-free vapor generation system of the atomic fluorescence spectrometer as set forth in claim 1, wherein the syringe pump (13) is a metering pump.

8. The separation and enrichment residue-free vapor generation system of the atomic fluorescence spectrometer as claimed in claim 1, wherein a pipeline led out from the bottom of the primary gas-liquid separator (10) is output to the waste liquid bottle (5) through a tee joint (15) arranged at the bottom of the peristaltic pump (6).

9. The separation and enrichment residue-free vapor generation system of the atomic fluorescence spectrometer as set forth in claim 1, wherein a pinch valve (14) is installed on a piping from the syringe pump (13) to the solenoid valve (7).

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