Integrated speciation and total analysis atomic fluorescence sampling and pretreatment system

A total analysis and atomic fluorescence technology, which is applied in the field of integrated form and total analysis atomic fluorescence sampling and pretreatment system, can solve the problems of increasing instrument failure rate and production cost, low degree of automation, increasing instrument production cost, etc. , to achieve the effect of easy manual or automatic control, reduce volume and production cost, and solve the problem of difference in injection volume
CN106442815BActive Publication Date: 2019-03-15成都市食品药品检验研究院
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
成都市食品药品检验研究院
Publication Date
2019-03-15

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Abstract

The invention relates to an integrated speciation and aggregate analysis atomic fluorescence sample feeding and pre-treating system comprising a multi-way valve A, a multi-way valve B and a multi-way valve C which are connected with one another. Two ports of the multi-way valve A are connected with a speciation analysis mobile phase inlet and a speciation analysis pre-treating system respectively, the multi-way valve B is connected with a sample feeding port, three ports of the multi-way port C are connected with a reductant inlet, the speciation analysis pre-treating system and a three-way joint B respectively, the three-way joint B is connected with a flow carrying inlet, the speciation analysis pre-treating system is connected with a speciation analysis pre-treating reagent inlet, and element aggregate analysis or element speciation analysis is performed by rotating the multi-way valve A, the multi-way valve B and the multi-way valve C for selection. One sample feeding and pre-treating system can be shared during element aggregate or speciation analysis, so that size and production cost of LC-HG-AFS equipment are reduced.
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Description

technical field

[0001] The invention relates to the technical field of liquid chromatography atomic fluorescence analysis instruments, in particular to an integrated form and total amount analysis atomic fluorescence sampling and pretreatment system. Background technique

[0002] Hydride generation-atomic fluorescence spectrometer (HG-AFS) is widely used in the analysis of arsenic, selenium, mercury, antimony, tellurium and other elements in biological and environmental samples. The combination of liquid chromatography and HG-AFS (LC-HG-AFS) makes the simultaneous analysis of multiple elements and the speciation analysis of elements possible.

[0003] It is worth noting that when HG-AFS is used for total elemental analysis and LC-HG-AFS is used for speciation analysis, there are large differences due to the amount of sample injected and the pretreatment method before atomic fluorescence detection ( For example, when performing total analysis, the sample injection volume is ...

Claims

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