用流动注射荧光法测定硅

Flow Injection Analysis for Trace Silicon Determination with Fluorometry

应用流动注射荧光法研究硅钼杂多酸与罗丹明６Ｇ的荧光猝天反应，利用该反应建立了痕量硅的测定方法，该方法灵敏度高、简便快速，分析速度可达１２０样／ｈ，可应用于铜合了金，钢样中硅的测定，取得满意结果。

A new fairly selective, simple and rapidy flow injection analysis for the determination with fluorometry is developed, based on the fluorescence equenching effect of Rhodamine 6G due to formation an unfluorescence ion-association complex. Fluorescence was measured at 555 nm(exciation 350nm).Beer′s law is obeyed over the concentration range of 0～80μg/L The method was used to determination silicon in steel sample and copper alloys with satisfactoryresults