Bipolar membrane acid-base liquid generating device for chromatographic technology

A generating device and chromatographic technology, which are applied in the field of bipolar membrane acid-base liquid generating devices, can solve the problems of complex repetitive arrangement, etc., and achieve the effects of simple operation, accurate and reliable data

Inactive Publication Date: 2011-11-09
张晨光
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

2) Only hydrogen ions and hydroxide ions are generated by electrolysis on the electrode, and the repeated arrangement is more complicated

Method used

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  • Bipolar membrane acid-base liquid generating device for chromatographic technology
  • Bipolar membrane acid-base liquid generating device for chromatographic technology
  • Bipolar membrane acid-base liquid generating device for chromatographic technology

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Embodiment Construction

[0029] 1. Acid-base liquid generating device, such as image 3 As shown, the whole system consists of cathode (1), cathode chamber (2), cation exchange membrane (3) (9), salt chamber (4) (10), anion exchange membrane (5) (11), acid chamber ( 6), bipolar membrane (7), alkali chamber (8), anode chamber (12), anode (13) and other components, wherein cathode chamber (2), salt chamber (4) (10), acid chamber (6) , the alkali chamber (8), the anode chamber (12) are rectangular, the thickness is 1mm, the volume is not more than 1ml, the material is polytetrafluoroethylene, the anode and cathode materials are titanium plates, the thickness of the titanium plate is 0.8mm, anion exchange membrane , cation exchange membrane, bipolar membrane, electrode, cathode chamber, anode chamber, salt chamber, acid chamber, alkali chamber, etc. image 3 The order is placed, and the outer periphery is kept airtight by mechanical clamping force. Each chamber can exchange liquid with the outside world ...

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Abstract

The invention relates to a bipolar membrane acid-base liquid generating device for a chromatographic technology. In the invention, a principle of disassociating water with bipolar membranes is adopted, H<+> and OH<-> are generated by disassociating water on the bipolar membranes, the reaction equation is that: H2O=H<+>+OH<->, an ion exchange membrane is used through cooperating with an electric field to make ions to move to a specific part through directional migration and to be subjected to a chemical reaction to prepare the acid-base liquid with a preset concentration. Pure H<+> and OH<-> ions are generated by a system cooperating with the cation exchange membrane and the anion exchange membrane, the concentration of the acid and the base can be changed according to the change of the extraneous electric field, and the device is especially suitable for the ion chromatography field.

Description

Technical field: [0001] The invention relates to a bipolar membrane acid-base liquid generating device for chromatographic technology, especially an automatic eluent generating device for ion chromatography, and an ion suppressing device. Background technique: [0002] As an effective separation and analysis technique, ion chromatography has the following separation mechanism: the eluent and the sample to be tested flow into the separation column filled with ion exchange resin, and the ions to be measured form different chromatographic zones and flow out of the separation column. In the ion chromatography of the method, the effluent of the chromatographic column also passes through the suppressor for background suppression. However, in the application of ion chromatography, it is necessary to ensure that the ion concentration of the eluent meets the requirements at any time, so the actual operation steps are cumbersome. In addition, in the use of liquid chromatography, the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25B1/10G01N30/34
CPCY02E60/366Y02E60/36
Inventor 张晨光
Owner 张晨光
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