中国油脂
中國油脂
중국유지
CHINA OILS AND FATS
2014年
6期
95-97
,共3页
吴凤琪%靳保辉%吴卫东%陈波%蓝芳
吳鳳琪%靳保輝%吳衛東%陳波%藍芳
오봉기%근보휘%오위동%진파%람방
分散固相萃取%气相色谱串联质谱%食用植物油%农药
分散固相萃取%氣相色譜串聯質譜%食用植物油%農藥
분산고상췌취%기상색보천련질보%식용식물유%농약
dispersive solid phase extraction%GC-MS/MS%edible vegetable oil%pesticide
食用植物油经乙腈提取后，经改进的分散固相萃取( QuEChERS)净化，采用气相色谱串联质谱( GC-MS/MS)，在选择反应监测离子( SRM)模式下，进行质谱定性，外标法定量，建立了食用植物油中8种禁用农药残留的快速定量分析方法。结果表明，8种农药的回归方程相关系数均大于0．99，定量限为10μg/kg，平均回收率为81．3%~100．7%，相对标准偏差小于等于10．2%。
食用植物油經乙腈提取後，經改進的分散固相萃取( QuEChERS)淨化，採用氣相色譜串聯質譜( GC-MS/MS)，在選擇反應鑑測離子( SRM)模式下，進行質譜定性，外標法定量，建立瞭食用植物油中8種禁用農藥殘留的快速定量分析方法。結果錶明，8種農藥的迴歸方程相關繫數均大于0．99，定量限為10μg/kg，平均迴收率為81．3%~100．7%，相對標準偏差小于等于10．2%。
식용식물유경을정제취후，경개진적분산고상췌취( QuEChERS)정화，채용기상색보천련질보( GC-MS/MS)，재선택반응감측리자( SRM)모식하，진행질보정성，외표법정량，건립료식용식물유중8충금용농약잔류적쾌속정량분석방법。결과표명，8충농약적회귀방정상관계수균대우0．99，정량한위10μg/kg，평균회수솔위81．3%~100．7%，상대표준편차소우등우10．2%。
The edible vegetable oil was extracted by acetonitrile, and then cleaned up by modified disper-sive solid phase extraction, after that 8 species of unauthorized pesticides were analyzed by gas chromatog-raphy-tandem mass spectrometry ( GC -MS/MS ) under selective reaction monitor mode. The results showed that the correlation coefficients of 8 species of unauthorized pesticides analyzed by the established method were above 0. 99. The limits of quantification were 10μg/kg and the average recoveries were in the range of 81. 3% -100. 7% with relative standard deviations (RSD) below 10. 2%.
