文献类型：期刊文献

英文题名：Optimization of a One-Step Method for the Multiresidue Determination of Organophosphorous Pesticides in Camellia Oil

作者：Liu, Yihua[1] Shen, Danyu[1] Mo, Runhong[1] Tang, Fubin[1]

第一作者：刘毅华

通信作者：Tang, FB[1]

机构：[1]Chinese Acad Forestry, Res Inst Subtrop Forestry, Fuyang 311400, Peoples R China

年份：2013

卷号：78

期号：2

起止页码：T372-T376

外文期刊名：JOURNAL OF FOOD SCIENCE

收录：;Scopus(收录号：2-s2.0-84873428233);WOS:【SCI-EXPANDED(收录号:WOS:000314990500035)】；

基金：This work was supported by the Special Fund for Forestry Scientific Research in the Public Interest (201304705, 201204414) and Applied Research Project in the Public Interest of Zhejiang Province (2012C22090). The authors state that there are no conflicts of interest.

语种：英文

外文关键词：camellia oil; gas chromatography; matrix solid-phase dispersion; multiresidue; organophosphorous pesticide

摘要：Due to the widespread use and potential toxicity of organophosphorous pesticides (OPs), multiresidue monitoring of OPs in camellia oil has become increasingly important. A simple, rapid, and effective matrix solid-phase dispersion extraction for the determination of 15 organophosphorous pesticides in camellia oil is described. Related important factors influencing the extraction efficiency, such as type of sorbent material, eluting solvent, and ratio of sample/sorbent were studied and optimized. The best results were obtained using 0.5 g of camellia oil, 1.5 g of white carbon black as dispersant sorbent, and 5 mL of acetonitrile: ethyl acetate (2:1, V/V) as eluting solvent. Method validation was performed in order to study sensitivity, linearity, precision, and accuracy. Average recoveries ranged between 76.7% and 102.9% with relative standard deviation values from 2.9% to 13.7% at 2 concentration levels (10 and 100 g/kg). The method limit of detection at or below the regulatory maximum residue limits for the pesticides was achieved. Practical Application: A simple, rapid, and effective method for multiresidue determination of organophosphorous pesticides in camellia oil was developed. The sample preparation could finish in 5 min.