分析化学Issue(8)：1110-1116,7.DOI:10.11895/j.issn.0253-3820.131225
QuEChERS-在线凝胶色谱-气相色谱-质谱法测定植物油中34种农药残留
Simultaneous Determination of 34 Pesticide Residues in Vegetable Oil by QuEChERS-on-line Gel Permeation Chromatography-Gas Chromatography-Mass Spectrometry
摘要
Abstract
A method for the simultaneous determination of 34 pesticides in sunflower oil, soybean oil and corn oil was developed. The samples were extracted and purified by a modified QuEChERS method, and then the supernatant was analyzed by on-line gel permeation chromatography-gas chromatography-mass spectrometry ( GPC-GC-MS ) . The linear range was from 0 . 01 to 0 . 2 mg/L with a good correlation coefficients ( r≥0. 9913). The average recoveries of 31 pesticides (except p,p′-DDE, p,p′-DDD, p,p′-DDT. For detail, please reference to section 3 . 6 ) ranged from 70 . 3% to 115 . 4%, 69 . 5% to 112 . 6% and 70 . 2% to 116 . 1%spiked at 0. 05 μg/g and 0. 1 μg/g with the relative standard deviations (RSDs, n=6) less than 13. 3%, 13. 5% and 12. 1% in sunflower oil, soybean oil and corn oil samples, respectively. The LODs of this method ranged from 0. 0692 to 2. 28, 0. 0559 to 2. 01 and 0. 0584 to 2. 14μg/kg (S/N=3) in sunflower oil, soybean oil and corn oil samples respectively. The convenient operation and versatility of this method are suitable for the fast screening and detection of 34 pesticide residues in sunflower oil, soybean oil and corn oil.关键词
QuEChERS/凝胶色谱-气相色谱-质谱/植物油/农药残留/快速筛查Key words
QuEChERS/Gel permeation chromatography-gas chromatography-mass spectrometry/Vegetable oil/Pesticide residues/Fast screening引用本文复制引用
阮华,荣维广,宋宁慧,吉文亮,刘华良,马永建..QuEChERS-在线凝胶色谱-气相色谱-质谱法测定植物油中34种农药残留[J].分析化学,2014,(8):1110-1116,7.基金项目
本文系国家自然科学基金(No.41101307)、江苏省“十二-五”科教兴卫工程(No. ZX201109)和江苏省疾病预防控制中心“科教兴业工程”项目(No. JKRC2011030)资助@@@@This work was supported by the National Natural Science Foundation of China (No.41101307) （No.41101307）
