文献类型：期刊文献

英文题名：A novel hydrophilic polymer-based anion exchanger grafted by quaternized polyethyleneimine for ion chromatography

作者：Yang, Zhanqiang[1];Li, Zongying[1];Zhang, Feifang[1];Yang, Bingcheng[1];Zhang, Shengmao[2]

机构：[1]East China Univ Sci & Technol, Sch Pharm, Shanghai Key Lab New Drug Design, Shanghai 200237, Peoples R China;[2]Henan Univ, Engn Res Ctr Nanomat, Kaifeng 475004, Peoples R China

年份：2019

卷号：197

起止页码：199

外文期刊名：TALANTA

收录：;EI(收录号：20190306372111);WOS:【SCI-EXPANDED(收录号:WOS:000460710200026)】；

基金：This work was sponsored by the National Key Research and Development Program of China (2018YFC1603500) and National Natural Science Foundation of China (No. 21477037). BCY acknowledges financial support from Fundamental Research Funds for the Central Universities (22221818014).

语种：英文

外文关键词：Ion chromatography; Anion exchanger; Polyethylenimine; Poly (glycidylmethacrylate-divinylbenzene); Hydrophilic polymer

摘要：A novel hydrophilic polymer-based anion exchanger has been described for ion chromatography (IC). It is prepared by grafting polyethyleneimine (PEI) onto the poly(glycidylmethacrylate-divinylbenzene) (GMA-DVB) substrate, followed by hydrolytic treatment to convert the residual epoxide groups onto the surface of GMA-DVB substrates to hydroxyl groups, finally quaternized PEI by a molecule containing epoxide group. Hydrophobic surface of GMA-DVB substrate can be converted to hydrophilic, aiming to reduce unwanted non-ionic interaction from the substrate. After optimizing the reaction conditions, the obtained anion exchanger showed good separation towards standard inorganic anions under the suppressed mode and complete elution of seven common inorganic anions could be achieved in less than 16 min by using potassium bicarbonate eluent. It also demonstrated fast dynamic kinetic and enabled the separation of 7 anions within 3 min at the isocratic mode. Column efficiency of the anion exchanger was up to 34,000 /m.