摘要
在０３ｍｏｌ／Ｌ的硫酸介质中，于溴化十六烷基吡啶存在下，形成锡苯芴酮溴化十六烷基吡啶橙红色三元络合物，其吸收波长为５１０ｎｍ，摩尔吸光系数为ε５１０＝１．０７×１０５Ｌ·ｍｏｌ－１·ｃｍ－１，样品标准偏差Ｓ＜０．０３％，锡含量在０～８μｇ／５０ｍｌ内符合比尔定律。本法已成功地运用于多金属矿分析。
In the presence of cetylpyridine bromide,
tin can form an orange ternary complex with phenylfluone in 0.3mol/L sulphuric acid medium. The
maximum absorption of the complex is at 510 nm and molar absorptivity, 1.07105. Beer's law is
obeyed in the range of 08g/50ml for Sn. The standard deviation of sample is less than 0.03%. The
method has been used for determination of multiple metal ores with satisfactory results.
关键词
锡
溴化十六烷基
吡啶
光度法
测定
矿石
tinphenylfluonecetylpyridine bromidemultiple metal ore
