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《Chinese Journal of Analytieal Chemistry》 1994-05
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Simultaneous Determination of Copper, Antimony and Bismuth by Differential Pulse Anodic Stripping Voltammetry and Partial Least Squares Regression

Ni Yongnian (Department of Chemistry, Jiangxi University, Nanchang 330047)Kokot S, Selby M, Hodgkinson M (School of Chemistry, Queensland University of Technology, Australia)  
Copper, antimony and bismuth all have good anodic stripping voltammetric waves with high sensitivities in acidic medium, but their peaks are overlapped. In this paper, partial least squares regression was applied to the resolution of voltammetric data of mixtures of these three metallic ions. The experiments were performed in medium of 1.0 mol/L NaCl and 0.12 mol/L HC1 at a hanging mercury drop electrode. The sample was deposited at -0. 4 (νs. Ag/AgCl ) for 300 s, and then the potential was scanned to 0.0V. The scan rate and the potential amplitude were 2.0 mV/s and 40 mV respectively. The measured data were recorded by the ana1yzer automatically and then were proceeded by a computer.
【Fund】: 国家自然科学基金;;江西省自然科学基金资助课题
【CateGory Index】: O657.1
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