Determination of multi-component pesticide residues in fruits and vegetables byautomatic solid phase extraction and gas chromatography tandem mass spectrometry
XU Yan, WANG Zhi-qiang, QIAO Yong-qing, WANG Yu-ping, WANG Dong-mei
Anyang Municipal Center for Disease Control and Prevention, Anyang, Henan 455000, China
Abstract：Objective To establish an analytical method for simultaneous determination of multi-component pesticide residues in fruits and vegetables by automatic solid phase extraction and gas chromatography tandem mass spectrometry. Methods Fruit and vegetable samples were extracted with acetonitrile, dehydrated by anhydrous sodium sulfate, purified by solid phase extraction small column, performed rotary evaporation and nitrogen blow after enrichment, determined by GC-MS/MS, and quantitated by external standard method. Results Multi-component pesticides were separated completely after 36 min. The correlation coefficient r was >0.9956 within the linear range of 0.01-10.0 μg/ml. The average standard addition recovery rates were between 72.1% amd 109.3%, and the relative standard deviation was between 4.0% and 11.3%. Conclusions This method not only has the advantage of simple pretreatment, but also shows higher sensitivity, accuracy and precision. It is suitable for routine detection of bulk samples. tandem mass spectrometrythe linear correlation coefficients were from 0. 9900 to 0. 9994,the limits of detection were from 0. 01 μg/kg to 3. 0 μg/kg,the limits of quantication were from 0. 03 μg/kg to 10. 0 μg/kg,the average recovery rates were in the range of 80. 1%~110. 0% and the relative standard deviations (RSD) were all less than 10%. Conclusion The method is applied to the routine analysis of multiple pesticides in edible fungi,with better recovery rate and statbility.
徐燕， 王志强， 乔永青， 王余萍， 王冬梅. 自动固相萃取-气相色谱串联质谱法测定果蔬中的多组分农药残留[J]. 实用预防医学, 2017, 24(1): 117-119.
XU Yan, WANG Zhi-qiang, QIAO Yong-qing, WANG Yu-ping, WANG Dong-mei. Determination of multi-component pesticide residues in fruits and vegetables byautomatic solid phase extraction and gas chromatography tandem mass spectrometry. , 2017, 24(1): 117-119.
2017, Vol. 24 
