An integrated dual-functional electrodialytic membrane suppressor for ion chromatography

被引：0

作者：

Sun, Yue ^{[1
]}

Li, Qujingshuo ^{[1
]}

Xu, Zhenzi ^{[1
]}

Zhang, Feifang ^{[1
]}

Yang, Bingcheng ^{[1
]}

机构：

[1] East China Univ Sci & Technol, Engn Res Ctr Pharmaceut Proc Chem, Shanghai Frontiers Sci Ctr Optogenet Tech Cell Me, Sch Pharm, Shanghai 200237, Peoples R China

来源：

JOURNAL OF CHROMATOGRAPHY A | 2022年 / 1666卷

基金：

中国国家自然科学基金;

关键词：

Ion chromatography; Electrodialytic membrane suppressor; Dual-functional; Bipolar membrane;

D O I：

10.1016/j.chroma.2022.462857

中图分类号：

Q5 [生物化学];

学科分类号：

071010 ; 081704 ;

摘要：

An integrated dual-functional electrodialytic membrane suppressor (D-EMS) is proposed that can simultaneously conduct suppression of acid and base eluent. It consists of four chambers, equivalent to half an anion electrolytic membrane suppressor (EMS) plus half a cation EMS with typical sandwiched configuration via a bipolar membrane (BPM). Anion exchange membrane, BPM and cation exchange membrane are respectively used to isolate two central eluent channels from two outer regenerant chambers. A constant current source is used to power D-EMS. The device shows similar performance to a separate EMS in terms of suppression capacity (>= 80 mu eq/min, corresponding to 80 mM eluent at the flow rate of 1 mL/min) and the resultant suppressed background (similar to 0.75 mu S/cm and similar to 0.17 mu S/cm for anion and cation section of D-EMS, respectively). (C) 2022 Elsevier B.V. All rights reserved.

引用

页数：4

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