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KMID : 1059519970410110590
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Journal of the Korean Chemical Society
1997 Volume.41 No. 11 p.590 ~ p.593
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Square-Wave Anodic Stripping Voltammetric Study of Germanium(Ⅳ)-Morin Complex
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Sohn Se-Chul
Park Yong-Joon
Joe Kih-Soo
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Abstract
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Square-wave anodic stripping voltammetry was applied to the germanium(Ⅳ)-Morin complex in 0.5 M sulfuric acid as a supporting electrolyte. The peak potential appeared at - 0.606 V vs. Ag/AgCl. Effects of sulfuric acid concentration, Morin concentration, accumulation potential, and accumulation time on the stripping peak current for the complex of germanium(Ⅳ)-Morin were studied. Interferences by other metal cations that affect on stripping peak current were also investigated. The detection limit was found to be 3.76×10-7 M(27 μg/L) for germanium(Ⅳ) using 60 seconds of accumulation time. The relative standard deviation (n=8) for 0.4 mg/L(5.5×10-6 M) germanium(Ⅳ) was 3.2%.
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