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Abrasive stripping voltammetric analysis of tin—bismuth

1990; Wiley; Volume: 2; Issue: 1 Linguagem: Inglês

10.1002/elan.1140020116

1521-4109

Fritz Scholz, Lutz Nitschke, Günter Henrion,

Electrodeposition and Electroless Coatings

Abstract 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.