胶束增敏荧光法测定甲氰菊酯的研究  

Determination of Fenpropathrin by Micellar Enhanced Spectrofluorimetry

作　　者：李满秀[1] 王翠[1] 许妍[1] 

机构地区：[1]忻州师范学院化学系,山西忻州034000

出　　处：《分析科学学报》2014年第2期280-282,共3页Journal of Analytical Science

基　　金：山西省高等学校教学改革项目(No.J2012091);山西省高等学校大学生创新创业训练项目(No.2012334);忻州师范学院教学改革项目(No.201113)

摘　　要：在pH=6.0的Britton-Robinson缓冲溶液中,十六烷基三甲基溴化胺（CTMAB）对甲氰菊酯的荧光有增敏作用,通过对表面活性剂及用量、介质pH值、温度及放置时间的探讨,建立了增敏荧光法测定甲氰菊酯的新方法。该方法线性范围为0.14~2.3ng/mL,检出限为0.042ng/mL。方法可用于蔬菜中甲氰菊酯残留的测定。In Britton-Robinson（pH = 6.0） medium, cetyl trimethyl ammonium bromide（CTMAB） can enhance the fluorescence of fenpropathrin, and a micellar enhanced spectrofluorimetric method for the determination of fenpropathrin has been developed under optimal conditions. The linear relationship between fluorescence intensity and concentration of fenpropathrin is kept in the concentration range of 0.14-2. 3 ng/mL and the detection limit is 0. 042 ng/mL. The method has been applied for the determination of fenpropathrin in vegetable with satisfactory results.

关 键 词：甲氰菊酯 胶束增敏荧光法 十六烷基三甲基溴化胺 

分 类 号：O657.39[理学—分析化学]