二安替吡啉苯乙烯基甲烷分光光度法测定水中的钒  

Spectrophotometric Determination of Vanadium in the Samples of Surface Water and Ground Water with Diantipylvinylphenylmethane

作　　者：李合义 许锋 李利平 雷鸣 

机构地区：[1]陕西省环境监测中心站,陕西西安710061 [2]中国方圆委陕西中心,陕西西安710048

出　　处：《中国环境监测》2011年第1期25-26,共2页Environmental Monitoring in China

摘　　要：采用二安替吡啉苯乙烯基甲烷(DAVPM)分光光度法测定水中的钒。基于在磷酸+锰(Ⅱ)介质中,DAVPM被钒氧化成红色产物且最大吸收在540nm处,从而得到了灵敏度高、简便、快速、具有良好精密度和准确度的新方法。The optimum conditions of color reaction of diantipylvinylphenylmethane（DAVPM）with trace vanadium were studied in the presence of Mn and Tween-60.The maximum absorbance of the complex is at 540 nm.Beer′s law is obeyed in the range of 0 ～ 80μg/25ml.The method was applied to the determination of trace vanadium in the samples of surface water and ground water with satisfactory results.

关 键 词：钒 二安替吡啉苯乙烯基甲烷(DAVPM) 分光光度法 水 测定 

分 类 号：X832[环境科学与工程—环境工程]