曙红荧光猝灭法测定水中ClO_2  

Mensuration of ClO_2 by Bromeosin Fluorescence Quenching Method

作　　者：李纪顺[1] 王春民[1] 蒋治良[1] 温桂清[1] 

机构地区：[1]广西师范大学资源与环境学院,广西桂林541004

出　　处：《环境监测管理与技术》2006年第2期22-23,31,共3页The Administration and Technique of Environmental Monitoring

基　　金：广西自然科学基金资助项目(0575042)

摘　　要：在pH值为5.0的HAc-NaAc缓冲溶液中,曙红在540 nm处产生一个荧光峰,并能被C lO2氧化导致其荧光发生猝灭。通过试验确定了C lO2使曙红褪色的最佳条件,C lO2在0.042 mg/L^0.916 mg/L范围内与曙红荧光猝灭强度呈线性关系,据此建立了水中C lO2的荧光分析方法,方法检出限为0.01 mg/L。There is a fluorescence peak at 540 nm for fluorescence quenching takes place when it is oxidized by bromeosin in pH 5.0 HAc-NaAc buffer ClO2. The optimum conditions for the solution and a oxidation was studied. The intensity of fluorescence quenching is linear with the concentration of ClO2 over the range of 0. 042 mg/L～0. 916 mg/L.

关 键 词：CLO2 曙红 荧光猝灭 水质 

分 类 号：O657.31[理学—分析化学]