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KMID : 1059519950390010023
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Journal of the Korean Chemical Society
1995 Volume.39 No. 1 p.23 ~ p.28
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Cathodic Stripping Voltammetric Study of Tin(Ⅱ)-Cupferron Complex
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Sohn Se-Chul
Suh Moo-Yul
Jee Kwang-Yong
Choi In-Kyu
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Abstract
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Differential-pulse cathodic stripping voltammetry was applied to the Sn(Ⅱ)-cupferron complex in 0.1 M acetate buffer solution (pH 4.20). Effects of solution pH, ligand concentration, accumulation potential, and accumulation time on the reduction peak current for the adsorptive complex of Sn(Ⅱ)-cupferron were investigated. Interferences by other metal cations that affected on reduction peak current were also discussed. The detection limit was 3.1×10-9 M (0.37 ppb) of Sn(Ⅱ) with 60 seconds accumulation time. The relative standard deviation (n=8) for 5×10-8 M Sn(Ⅱ) was 3.0%.
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