二溴苯基荧光酮荧光猝灭法测定水中的氯气  

A Fluorescence Quenching Method for the Determination of Chlorine in Water with 4,5—dibromophenylfluorone(DB—PF)and CTMAB

作　　者：龚国权[1] 贾丽[1] 李力前 

机构地区：[1]兰州大学化学系,兰州730000

出　　处：《兰州大学学报（自然科学版）》1993年第3期158-160,共3页Journal of Lanzhou University(Natural Sciences)

摘　　要：本文用荧光猝灭法研究了用二溴苯基荧光酮(DB-PF)为指示剂测定水中氯气的新方法。在CTMAB存在下,所形成的络合物的最大激发波长与最大发射波长分别为543nm、560nm,检测限为4μg/L,线性范围为4～80μg/L。本法灵敏度高,选择性好,简便、快速,适用于检测水中氯气的含量。A highly sensitive and selective fluorescence quenching method was developed to determine the chlorine in water with DB—PF as fluorigenic reagent. In the presence of CTMAB,a compound was produced;its maximum excitation wavelength is 543nm and its maximum emission wavelength is 560nm. The detection limit is 4μg/L The linear calibration range is 4～80μg/L This method may be used for the determination of chlorine in water.

关 键 词：氯 荧光猝灭法 水 DB-PF 

分 类 号：TU991.21[建筑科学—市政工程]