文献类型：期刊文献

英文题名：A simplified ion exchange bead-based KOH electrodialytic generator for capillary ion chromatography

作者：Yang, Bingcheng[1];Zhang, Feifang[1];Liang, Xinmiao[1,2]

机构：[1]E China Univ Sci & Technol, Sch Pharm, Shanghai 200237, Peoples R China;[2]Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China

年份：2009

卷号：79

期号：1

起止页码：68

外文期刊名：TALANTA

收录：;EI(收录号：20091612043343);WOS:【SCI-EXPANDED(收录号:WOS:000266187600012)】；

基金：This research was supported by National Natural Science Foundation of China (no.20805047). It was partially supported by National Key Technology R&D Program in the 11th 5-year Plan of China (no. 20707026).

语种：英文

外文关键词：Electrodialytic eluent generator; Capillary ion chromatography; Ion exchange bead

摘要：A simple potassium hydroxide electrodialytic generator (EDG) with singe membrane configuration is described. In this setup, one cation exchange resin (CER) bead is used to fabricate the EDG in place of the common membrane sheet. The device is implemented simply in a commercial stainless steel (SS) Tee which serves as both the EDG cartridge and the cathodic electrode. The present EDG has much lower internal volume (similar to 0.16(L), which is well suited with capillary ion chromatography system. The device has been tested up pressures to 3200 psi and could be directly deployed on the high-pressure side of the pump. The electrolysis gas can be effectively removed by a segment of PTFE tubing. In the tested range of 0-100mM, the KOH concentration is generated linearly with the applied current being near-Faradaic efficiency. The device permits both isocratic and gradient operation with good reproducibility, as demonstrated by the analysis of anions. (C) 2009 Elsevier B.V. All rights reserved.