Affiliation of Author(s):The University of Texas at Arlington

Journal:Analytical Chemistry

Place of Publication:USA

Abstract:We describe novel cycloolefin polymer (COP)-based open tubular capillary ion exchange columns. COP capillaries (inner diameter of 19−28 μm) were successfully sulfonated at room temperature using a cocktail of ClSO3H (85−95% w/w) and HOAc or H2SO4. The cation exchange capacity is controlled by the sulfonation time and the sulfonation solution composition and can be as high as 300 equiv/mm2. Following sulfonation, the capillaries were coated with 65-nm-diameter anion exchanger (AEX) latex nanoparticles that attach electrostatically. The typical anion exchange capacities were ∼20 pequiv/mm2. The

Co-author:Weixiong Huang, Sasikarn Seetasang, Mohammadmehdi Azizi, Purnendu K. Dasgupta

First Author:Weixiong Huang

Indexed by:Journal paper

Correspondence Author:Purnendu K. Dasgupta

Document Code:10.1021/acs.analchem.6b03669

Discipline:Science

Volume:88

Page Number:12013-12020

Translation or Not:no

Date of Publication:2016-11-10

Included Journals:SCI

Links to published journals:https://pubs.acs.org/doi/10.1021/acs.analchem.6b03669

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