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．
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 2.4×1212g/ml.The method has been used to determine trace tin in human hair,water samples and ores with satisfactory results.
出处
《环境保护科学》
CAS
1998年第4期35-37,共3页
Environmental Protection Science
