以谷胱甘肽(GSH)为稳定剂,在水相中合成了高荧光的硒化锌量子点(ZnSe QDs).实验发现,农药敌磺钠能显著猝灭ZnSe QDs的荧光,同时采用荧光光谱和吸收光谱研究了敌磺钠与ZnSe QDs相互作用的荧光猝灭机理.通过对比3个温度下体系的Stern-Volmer方程动态猝灭常数KSV发现,敌磺钠对ZnSe QDs的荧光猝灭主要为动态过程.利用二者的猝灭作用建立了对农药敌磺钠的高灵敏检测新方法,其线性范围为6.69×10-7～2.23×10-4 mol/L,相关系数为R=0.999,检出限为2.01×10-7 mol/L.用该方法对自来水中残留农药进行检测,加标回收率在95.8%～105%之间. Highly fluorescent zinc selenide quantum dots (ZnSe QDs) were synthesized in the aqueous phase using glutathione (GSH) as a stabilizing agent. It was found that the pesticide sodium sulfonate QS could significantly quench the fluorescence of ZnSe QDs while using fluorescence Spectroscopy and absorption spectra were used to study the fluorescence quenching mechanism of the interaction between sodium sulfite and ZnSe QDs.The fluorescence quenching of ZnSe QDs by sodium sulfonate was mainly found by comparing the dynamic quenching constant KSV of the Stern-Volmer equation at three temperatures As a dynamic process.Using the quenching effect of both, a new sensitive detection method for pesticide sodium sulfonate was established, with a linear range of 6.69 × 10-7 ~ 2.23 × 10-4 mol / L and a correlation coefficient of R = 0.999 , And the detection limit was 2.01 × 10-7 mol / L. The residual pesticides in tap water were detected with this method, and the recoveries were between 95.8% and 105%.