超声辅助-化学发光法用于环境样品中哒螨灵的测定  

Ultrasound Assisted Chemiluminescence Determination of Pyridaben in Environmental Samples

作　　者：张王兵[1] 孙楚潇 杨新安[1] 

机构地区：[1]安徽工业大学化工学院应用化学系,安徽马鞍山243002

出　　处：《分析科学学报》2014年第2期215-218,共4页Journal of Analytical Science

基　　金：安徽省科技攻关计划(No.08010304219)

摘　　要：研究发现,在碱性介质中,超声处理后的杀螨剂类农药哒螨灵可以显著增强鲁米诺-KMnO4体系的发光强度,据此建立了哒螨灵的化学发光检测技术。对超声频率、功率、时间、温度及发光条件进行了优化,在最佳条件下,哒螨灵的浓度在1~100μg/L的范围内与发光强度呈良好的线性关系;检出限（3σ）为0.67μg/L,相对标准偏差为4.8%（n=11）。该方法用于环境水样中哒螨灵残留量的测定,回收率在92.5%~108.3%之间。It was found that pyridaben could greatly enhance the emission of the luminol-KMnO4 chemiluminescence （CL） system after ultrasonic treatment and the enhancing effect on the CL intensity was proportional to the concentration of pyridaben. Based on this, a novel method for pyridaben determination was developed. The effects of the ultrasonic conditions including ultrasonic frequency, power, time and temperature on the CL signal have been studied in detail. Under the optimized conditions,the CL intensity was linear with pyridaben concentration over the range of 1-100μg/L with a detection limit （3σ） of 0. 67 μg/L. The relative standard deviation（RSD） was 3. 9% （n = 11）. The method has been applied to the determination of pyridaben residue in environmental waters, and the recoveries were 92.5%-108.3%.

关 键 词：化学发光 超声波 哒螨灵 

分 类 号：O657.39[理学—分析化学]