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《China Rice》 2016-02
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Preliminary Study on QuEChERS-LC-MS/MS Method for Rapid Detection of 12 Kinds of Pesticide Residues in Rice

CHEN Jingdu;WU Hongjun;WANG Longgen;CHENG Qiang;Agricultural Products Quality Supervision and Inspection Center of Yangzhou City;  
To detect 12 kinds of pesticide in rice by Qu EChERS-LC-MS/MS with acetonitrile as extracting agent. By comparison,the anhydrous magnesium sulfate, PSA, and C18 were selected as adsorbent, and the amount of the three adsorbent was determined as 50 mg, 50 mg and 20 mg. Extraction of rice after purification were detected by LC-MS/MS with 0.1% formic acid and tendency for 2mmol/L ammonium acetate mixed aqueous solution and acetonitrile as mobile phase. The results showed that a good linear relationship(R0.99), the recoveries of 12 kinds of pesticide were 70.3%~118.5%, with the precision below 20%. This method not only could meet the inspection work of rice residue but also have the characteristics of energy saving and environmental protection, simple opera-tion and cost saving and high efficiency.
【Fund】: 扬州市“绿扬金凤计划”项目
【CateGory Index】: S481.8
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