SIGNAL STABILITY OF NAFION-COATED THIN MERCURY FILM ELECTRODES FOR STRIPPING VOLTAMMETRY

被引：32

作者：

HOYER, B

JENSEN, N

机构：

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

来源：

TALANTA | 1994年 / 41卷 / 03期

关键词：

D O I：

10.1016/0039-9140(94)80151-7

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The signal stability of the Nafion-coated thin mercury film electrode (NCTMFE) was studied by using cadmium and lead as test analytes and differential pulse anodic stripping voltammetry as detection method. In particular, the effect of the casting solvent and the curing procedure employed in the preparation of the polymer film was examined. Best results were obtained with N,N-dimethylacetamide as casting solvent and a two-step curing procedure in which the polymer was evaporated to dryness at 55-degrees and cured at 105-degrees with a hot-air gun. Mercury plating was performed ex situ. An NCTMFE prepared in this manner has a better signal stability than ex situ-plated as well as in situ-plated conventional mercury film electrodes.

引用

页码：449 / 453

页数：5

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