Application of Oscillo-indicating Technique to Kinetic Analysis (Ⅲ)——Determination of Copper and Iodine by Catalytic Method with Oscillo-biamperometry

Chem. J. Chinese Universities ›› 1992, Vol. 13 ›› Issue (2): 179.

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Application of Oscillo-indicating Technique to Kinetic Analysis (Ⅲ)——Determination of Copper and Iodine by Catalytic Method with Oscillo-biamperometry

HUANG Lan, GAO Hong(H. Kao)

Department of Chemistry, Nanjing University, Nanjing, 210008

Received:1990-03-20 Revised:1991-10-25 Online:1992-02-24 Published:1992-02-24

Abstract

Abstract: This paper reports the application of oscillo-indicating technique to kinetic analysisCu (Ⅱ) and I^- are determined by oxidation of Na₂S₂O₃ with Fe(Ⅲ), which is catalyzed by Cu(Ⅱ) and by oxidation of As(Ⅲ) with Ce(Ⅳ), which is catalyzed by I^-, respectivelyThe detective limit reaches 2× 10^-7 mol/Lfor Cu(Ⅱ) and 2× 10^-8 mol/Lfor I^- This method shows advantages of sensitivity, convenience and economy.

Key words: Oscillo-indicating technique, Kinetic analysis, Copper, Iodine

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HUANG Lan, GAO Hong(H. Kao). Application of Oscillo-indicating Technique to Kinetic Analysis (Ⅲ)——Determination of Copper and Iodine by Catalytic Method with Oscillo-biamperometry[J]. Chem. J. Chinese Universities, 1992, 13(2): 179.

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Application of Oscillo-indicating Technique to Kinetic Analysis (Ⅲ)——Determination of Copper and Iodine by Catalytic Method with Oscillo-biamperometry

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