FUNCTIONAL MEMBRANES FOR FLOW BUFFERING

被引：3

作者：

GLAD, B ^{[1
]}

IRGUM, K ^{[1
]}

机构：

[1] UMEA UNIV,DEPT ANALYT CHEM,S-90187 UMEA,SWEDEN

来源：

ANALYTICA CHIMICA ACTA | 1994年 / 298卷 / 02期

关键词：

FLOW SYSTEM; MEMBRANES; FLOW BUFFERING;

D O I：

10.1016/0003-2670(94)00277-0

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Synthesis of functional membranes applicable to the buffering of pH in flow systems is described. The membranes are interpenetrating polymer networks of 2,3-epoxypropyl methacrylate and ethylene dimethacrylate in a preformed porous polymeric polypropene substrate. The pendant reactive epoxy groups in the membranes are converted into several functional groups with different pK(a) values. The functionalized membranes are able to continuously adjust the pH of both acidic and alkaline flowing streams to a value close to the pH of the regenerant buffer.

引用

页码：151 / 157

页数：7

共 31 条

[1]

BOWERS LD, 1986, REACTION DETECTION L, P195

[2] TRANSPORT OF METALS THROUGH GELLED SUPPORTED LIQUID MEMBRANES CONTAINING CARRIER [J].