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| Determination of 16 Organochlorine Pesticides Residues in Vegetables and Fruits by Gas Chromatography with QuEChERS Purification |
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| DOI： |
| KeyWord:QuEChERS gas chromatography vegetables and fruits organo chlorine pesticide |
| Author | Institution |
| WANG Xiao-chun,LIANG Li,ZHOU Huan-ying |
1.College of Chemistry and Life Science,Anshan Normal University,Anshan,China;2.Institute of Environmental and Operational Medicine,Academy of Military Medical Science,Academy of Military Science,Tianjin,China |
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| Abstract: |
| In this paper,a rapid method was developed for the simultaneous determination of 16 organochlorine pesticides(OCPs) in cucumber,cole rape,orange and apple by QuEChERS purification and gas chromatography with electron capture detection(GC/ECD).Pesticide residues in vegetable and fruit samples were extracted by QuEChERS method with acetonitrile containing 1% acetic acid.The retention time for peaks of the organochlorine pesticide was used for qualitative analysis,and external standard method was applied to the quantitative analysis.Results showed that there were good linear relationships for 16 kinds of OCPs in the range of 20-100 μg/L with correlation coefficients larger than 099.The detection limits of the method were in the range of 016-290 μg/L.The average recoveries of 16 OCPs from 4 matrics(cole rape,cucumber,orange,apple) ranged from 701% to 119% with relative standard deviations(RSDs) of 023%-52%.Compared with other pretreatment methods,the method is rapid,effective,simple,cheap and reliable,and is suitable for the high throughput and rapid detection of OCPs residues in vegetable and fruit samples. |
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