摘要
基于稀磷酸介质中痕量锡对次磷酸钠还原酸性铬蓝Ｋ褪色反应的催化作用，建立了测定痕量锡的动力学光度分析法。方法的测定范围为０－４．０μｇ／Ｌ，检出限为０．００６２μｇ／Ｌ。结合磷酸三丁酯色谱分离，实现地质样品中痕量锡的测定，实验结果与标准值相符。
Catalytic effect of trace tin on decolorizing reaction of acid chrome blue K by reducing with sodium hypophosphite in dilute phosphate acid solution has been studied.Based on this study, a kinetic spectrophotometric method for the determination of trace tin has been established.The detection of the method is 0.0062μg/L tin and the linear range is 0 to 4.0μg/L for tin.Combined with chromatographic separation using tributyl phosphate,the method has been realized the determination of trace tin in geological samples and the results obtained are in good agreement with certified values.
出处
《光谱实验室》
CAS
CSCD
1998年第6期40-43,共4页
Chinese Journal of Spectroscopy Laboratory
