食品科学技术学报2016，Vol.34Issue(6)：75-78,84,5.DOI:10.3969/j.issn.2095-6002.2016.06.013
流动注射化学发光法检测蔬菜中乐果含量
Flow Injection Chemiluminescence Method for Detection of Dimethoate in Vegetables
摘要
Abstract
In alkaline medium, hydrogen peroxide oxidizes luminol and then produces chemilumines-cence. Dimethoate could enhance the chemiluminescence intensity strongly, and thus a quick and direct flow injection chemiluminescence method based on luminol-hydrogen peroxide system was established to determine the content of dimethoate. The results indicated that the dimethoate concentration had a good linear correlation with chemiluminescence within the scope of 0. 01 to 10 mg/L. The detection limit of the method was 0. 009 mg/L. The relative standard deviation was 2. 1% for eleven replicate detections of 0. 5 mg/L dimethoate. Using this system, the cauliflower samples were spiked with dimethoate and detected by this method with recovery ranging from 86. 7% ~109. 5%.关键词
流动注射/化学发光/鲁米诺/乐果Key words
flow-injection/chemiluminiscence/luminol/dimethoate分类
轻工纺织引用本文复制引用
王守敏,胡燕,徐志祥..流动注射化学发光法检测蔬菜中乐果含量[J].食品科学技术学报,2016,34(6):75-78,84,5.基金项目
国家自然科学基金资助项目(31471649)。 （31471649）
