Complete Electrolysis Using a Microflow Cell with an Oil/Water Interface

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• 作者：Shigeo Sawada ; Masaru Taguma ; Takashi Kimoto ; Hiroki Hotta ; and Toshiyuki Osakai
• 刊名：Analytical Chemistry
• 出版年：2002
• 出版时间：March 1, 2002
• 年：2002
• 卷：74
• 期：5
• 页码：1177 - 1181
• 全文大小：82K
• 年卷期：v.74,no.5(March 1, 2002)
• ISSN：1520-6882

文摘

A novel microflow cell with a nitrobenzene (NB)/water (W)interface was developed. A poly(tetrafluoroethylene) membrane filter was employed to prepare the NB/W interfacewhich was formed over a thin channel (0.1 mm thick, 48cm long) on a silver plate. The silver plate was electrolyzedin advance and served as an Ag/AgCl electrode forcontrolling the Galvani potential difference across theNB/W interface as well as detecting the current flowingthrough the interface. Using the microflow cell, completeelectrolysis was accomplished for the interfacial transferof a representative ion (i.e., tetramethylammonium ion).Thus, the present microflow cell was shown to be promising for coulometric (i.e., absolute quantitative) analysisof ions. Also, the microflow cell was shown to be usefulfor determination of the number of electrons for complicated charge-transfer processes at the oil/water interface.