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Abstract

Zwitterionic ion-exchangers represnt a new direction in the development of stationary phases for different modes of high-performance liquid chromatography. The combination of positively and negatively charged sites in a single particle, or within the functional groups of a single molecule attached the surface of an adsorbent, provides unique opportunities to vary the selectivity of the separation. The classification of zwitterionic ion-exchangers based on their structure, distribution of oppositely charged groups, and their applications is considered.

Item Type:	Article
Authors/Creators:	Nesterenko, PN and Haddad, PR
Journal or Publication Title:	Analytical Sciences
ISSN:	0910-6340
DOI / ID Number:	https://doi.org/10.2116/analsci.16.565
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