Preparing method for ion exchange resin, negative ion chromatographic column prepared from ion exchange resin prepared through method and application of negative ion chromatographic column

Abstract

The invention relates to a preparing method for ion exchange resin used for simultaneous separation of ten kinds of negative ions including F<->, ClO<2><->, BrO<3><->, Cl<->, NO<2><->, NO<3><->, Br<->, ClO<3><->, H2PO<4><-> and SO<4><2->, a negative ion chromatographic column prepared from the ion exchange resin prepared through the method and application of the negative ion chromatographic column. The preparing method for achieving the ion exchange resin, the negative ion chromatographic column prepared from the ion exchange resin prepared through the method and the application of the negative ion chromatographic column have the advantages that base balls of prepared ion exchange resin are mono-dispersed, the column pressure is low, and the service life is long; the prepared negative ion chromatographic column is convenient to operate, free of gradient elution, low in leacheate price and good in stability; the prepared negative ion chromatographic column can achieve separation of water negative spikes and a fluorinion base line, and quantitative separation of fluorinion is not influenced; the prepared negative ion chromatographic column is high in efficiency, has excellent separation effects and can simultaneously separate the ten kinds of negative ions including F<->, ClO<2><->, BrO<3><->, Cl<->, NO<2><->, NO<3><->, Br<->, ClO<3><->, H2PO<4><-> and SO<4><2->.

Description

technical field [0001] The invention relates to the technical field of preparation of ion chromatographic column fillers, in particular to a method capable of simultaneously completing F - , ClO 2 - , BrO 3 - , Cl - , NO 2 - , NO 3 - 、Br - , ClO 3 - 、H 2 PO 4 - and SO 4 2- The preparation method of the ion exchange resin of ten kinds of anions, and the application of the anion chromatographic column and the chromatographic column made of the ion exchange resin prepared by this method. Background technique [0002] The transformation of ion exchange resin from polyaddition type to polystyrene type is a qualitative leap. In the initial stage of synthesizing ion exchange resins, the polyaddition type is the main type, but the synthetic resins are difficult to form into spherical shapes and have poor chemical stability and poor mechanical strength. Soluble substances often ooze out during use. [0003] Ion exchange resin is a kind of network structure polymer c...

AI Technical Summary

Problems solved by technology

[0005] The main separation component of the ion chromatograph is the ion chromatography column, and the performance of the ion chromatography column depends on the anion exchange resin. The quality of the anion chromatography columns currently available in the market is also uneven. The ordinary column can do F-, Cl-, NO3 -, SO42-4 kinds of ions, high-efficiency anion strains can only separate 7 kinds of ions at most, and cannot meet the current needs of many fields such as surface water, drinking water, wastewater, food, medicine, etc.

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