碘酸钾氧化甲基绿褪色光度法测定痕量锡 Spectrophotometric Determination of Trace Tinby Catalytic Decolorization Based on Oxidation of Methyl Green with Potassium Iodate期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

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碘酸钾氧化甲基绿褪色光度法测定痕量锡

引用本文：	周之荣,王锐.碘酸钾氧化甲基绿褪色光度法测定痕量锡[J].环境保护科学,1998,24(4):35-37.

作者姓名：	周之荣王锐

作者单位：	华东地质学院应用化学系

摘要：	研究了稀磷酸介质中痕量锡催化碘酸钾氧气甲基绿的褪色反应及动力学条件，建立了高灵敏度测定痕量锡的新催化光度法．方法的灵敏度为２．４×１０－１２ｇ／ｍＬ，线性范围为０～０．１２μｇ／Ｌ．用于人发、水样及矿石中痕量锡的测定，结果满意．
关键词：	碘酸钾甲基绿锡催化分光光度法
Spectrophotometric Determination of Trace Tinby Catalytic Decolorization Based on Oxidation of Methyl Green with Potassium Iodate

Abstract:	The discoloration reaction and kinetic conditions for the catalytic oxidation of methyl green in dilute phosphoric acid medium with postassium iodate has been studied,the reaction is catalyzed by trace tin.A highly sensitive,new catalytic spectrophotometric method for determining trace tin has been established.The linear range is 0-0.12ug/L and the sensitivity of the method is 2.4×1212g/ml.The method has been used to determine trace tin in human hair,water samples and ores with satisfactory results.

Keywords:	Tin Catalytic Spectrophotometry Methyl Green Pltassium Iodate
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