桑色素荧光法测定铍的研究  

Study on the Fluorometric Determination of Beryllium Using Morin

作　　者：赵振华[1] 田德海[1] 全文熠[1] 张全生[1] 

机构地区：[1]北京市环境保护科学研究所,太原市卫生防疫站

出　　处：《环境科学》1994年第5期67-70,共4页Environmental Science

基　　金：北京市自然科学基金

摘　　要：报告铍与桑色素试剂的荧光光谱特性，给出其激发光谱，发射光谱和同步荧光光谱图，Δλ选用１００ｎｍ的同步荧光光谱效果最佳。当Ｂｅ（２＋）的浓度为０．００５μｇ／ｍｌ时仍可获得良好的同步荧光光谱，对大气样品和水中痕量铍的测定结果与常规方法的结果有可比性。The fluorometric spectra of beryllium-morin complex were characterized and the graphs of excitation spectrum, emission spectrum and synchronous fluorescence spectrum were given. The synchronous spectrum of beryllium- morin in an alkaline solution had an optimum specific Δλ of 100um. A synchronous scanning spectrofluorometry was used to determine beryllium at a level of submicrogram,with a detectable limit of 5 ng/ml Be￣(2+). The results obtained with this method were comparable with those obtained with an atomic absorption spectrophotometric method for air samples and water samples.

关 键 词：铍 桑色素 荧光光度法 测定 

分 类 号：X502[环境科学与工程—环境工程]