Rapid and sensitive detection of abamectin in edible oils by solid phase extraction combined with ultra-high-pressure liquid chromatography-tandem mass spectrometry
文献类型： 外文期刊
作者： Wu, Jian-Yuan 1 ; Zhang, Yu 2 ; Peng, Xi-Tian 2 ; Yu, Qiong-Wei 2 ; Feng, Yu-Qi 2 ;
作者机构： 1.Wuhan Univ, Zhongnan Hosp, Wuhan 430071, Peoples R China
2.Wuhan Univ, Dept Chem, Wuhan 430072, Peoples R China
3.Hubei Acad Agr Sci, Inst Agr Qual Stand & Testing Technol Res, Wuhan 430064, Peoples R China
期刊名称：ANALYTICAL METHODS （ 影响因子：2.896； 五年影响因子：2.716 ）
ISSN： 1759-9660
年卷期： 2014 年 6 卷 21 期
页码：
收录情况： SCI
摘要： This study proposes a fast, simple and sensitive ultra-high-pressure liquid chromatography-tandem mass spectrometry (UPLC-MS/MS)-based method for the detection of abamectin in edible oils. An effective one-step process of extraction and cleanup of abamectin from edible oils is achieved with the use of a humic acid-bonded silica (HAS)-based solid phase extraction (SPE), providing good cleanup performance and satisfactory recovery of abamectin. The effects of experimental variables, such as the amount of sorbents, loading, washing and eluting solvents, and the flow rates of sampling and eluting have been studied in detail. Under optimized conditions, the validation method was performed in terms of linearity, recovery and precision. Good linearity was obtained for abamectin with R-2 0.9996, and the limit of detection (LOD) was found to be 0.16 mu g kg(-1). The recovery methods of abamectin spiked at three concentration levels in a blank sample were from 91.7% to 101.8%, with inter- and intra-day relative standard deviations (RSDs) of less than 7.0%.
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