ABRASIVE STRIPPING VOLTAMMETRIC ANALYSIS OF TIN - BISMUTH

被引:43
|
作者
SCHOLZ, F
NITSCHKE, L
HENRION, G
机构
[1] Humboldt-Universität Zu Berlin, Sektion Chemie, Berlin, DDR‐1040
关键词
D O I
10.1002/elan.1140020116
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
The analysis of tin‐bismuth alloys using a new stripping technique, abrasive stripping voltammetry, is described. Small amounts of the alloy are transferred by mechanical abrasion from the solid alloy onto the surface of a paraffin‐impregnated graphite electrode. These traces are anodically stripped off with differential pulse voltammetry. The ratio of the tin and bismuth peak currents provide a measure of their relative content in the alloy. The determinations have standard deviations of about 5%. Peak potentials are reproducible within a 20‐mV range. Copyright © 1990 VCH Publishers, Inc.
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收藏
页码:85 / 87
页数:3
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