PHASE-INVERSION CELLULOSE-ACETATE MEMBRANES FOR SUPPRESSION OF PROTEIN INTERFERENCES IN ANODIC-STRIPPING VOLTAMMETRY

被引：15

作者：

HOYER, B

JENSEN, N

机构：

[1] Department of Chemistry, Aarhus University, 8000 Aarhus C

来源：

TALANTA | 1995年 / 42卷 / 05期

关键词：

D O I：

10.1016/0039-9140(95)01481-P

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The phase-inversion (PI) method was used to cast permselective cellulose acetate membranes on glassy carbon electrodes with the aim of suppressing protein interferences in anodic stripping voltammetry (ASV). By using cadmium and lead as test analytes and differential pulse ASV as detection method, it was found that the modification of the electrode greatly reduces the interference from albumin. Cellulose acetate membranes prepared by the PI method give better protection against protein interference and have more reproducible permeability characteristics than membranes of comparable thickness prepared by the base hydrolysis method. An optimization study of the PI coating procedure was undertaken.

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收藏

页码：767 / 773

页数：7

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