Catalytic Reduction of Bisulfite by Myoglobin/Surfactant Films,Electroanalysis

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Catalytic Reduction of Bisulfite by Myoglobin/Surfactant Films
Electroanalysis ( IF 2.7 ) Pub Date : 2017-08-01 , DOI: 10.1002/elan.201700317
Radalla Abdelatty ₁ , Md. Hafizur Rahman ₁ , Michael D. Ryan ₁

Affiliation

The voltammetry of bisulfite at a film formed with myoglobin was studied in aqueous solutions. A broad wave was observed for the reduction of bisulfite. Using controlled potential electrolysis, the reduction at potentials positive of the FeII/FeI wave formed dithionite exclusively. As the potential approached the region for the FeII/FeI reduction, bisulfite was reduced primarily to HS−. Even at the negative potentials, some dithionite was still formed, which could then be electrochemically reduced to thiosulfate. Analysis of the formation of HS−, dithionite and thiosulfate during the electrolysis was consistent with the parallel formation of HS− and dithionite, the latter of which was reduced to thiosulfate. Thiosulfate was verified by chemical analysis of the products from controlled potential electrolysis of the solution, and dithionite was observed spectroscopically using spectroelectro−chemistry.

中文翻译：

肌红蛋白/表面活性剂膜催化还原亚硫酸氢盐

在水溶液中研究了亚硫酸氢盐在与肌红蛋白形成的薄膜上的伏安法。观察到亚硫酸氢盐还原的宽波。使用受控电位电解，FeII/FeI 波在正电位下的还原仅形成连二亚硫酸盐。随着电位接近 FeII/FeI 还原区域，亚硫酸氢盐主要还原为 HS-。即使在负电位下，仍然会形成一些连二亚硫酸盐，然后可以将其电化学还原为硫代硫酸盐。对电解过程中 HS-、连二亚硫酸盐和硫代硫酸盐形成的分析与 HS-和连二亚硫酸盐平行形成一致，后者被还原为硫代硫酸盐。硫代硫酸盐通过对溶液控制电位电解产物的化学分析进行验证，

更新日期：2017-08-01

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