粮食与油脂
糧食與油脂
양식여유지
CEREALS & OILS
2015年
5期
60-62
,共3页
张静恒%吴虹玥%方晓燕%张蓉琴
張靜恆%吳虹玥%方曉燕%張蓉琴
장정항%오홍모%방효연%장용금
GPC%GC-MS/MS%菜籽油%农药残留量
GPC%GC-MS/MS%菜籽油%農藥殘留量
GPC%GC-MS/MS%채자유%농약잔류량
GPC%GC-MS/MS%rapeseed oil%pesticide residue
建立凝胶渗透色谱―气相色谱―串联质谱法测定菜籽油中5种高毒农药的检测方法。样品经乙酸乙酯―环己烷(体积比1∶1)溶解,凝胶渗透色谱(GPC)净化,利用GC–MS/MS检测,外标法定量。方法检测限为0.2~1.9μg/kg,在0.05、0.1、0.5 mg/kg三个质量分数水平进行了添加回收实验,样品回收率为75.2%~95.7%,RSD为2.0%~6.1%。该方法具有操作简单,快速,净化效果好,精密度高,重现性好等优点,可应用于菜籽油中的5种高毒农药残留量的检测。
建立凝膠滲透色譜―氣相色譜―串聯質譜法測定菜籽油中5種高毒農藥的檢測方法。樣品經乙痠乙酯―環己烷(體積比1∶1)溶解,凝膠滲透色譜(GPC)淨化,利用GC–MS/MS檢測,外標法定量。方法檢測限為0.2~1.9μg/kg,在0.05、0.1、0.5 mg/kg三箇質量分數水平進行瞭添加迴收實驗,樣品迴收率為75.2%~95.7%,RSD為2.0%~6.1%。該方法具有操作簡單,快速,淨化效果好,精密度高,重現性好等優點,可應用于菜籽油中的5種高毒農藥殘留量的檢測。
건립응효삼투색보―기상색보―천련질보법측정채자유중5충고독농약적검측방법。양품경을산을지―배기완(체적비1∶1)용해,응효삼투색보(GPC)정화,이용GC–MS/MS검측,외표법정량。방법검측한위0.2~1.9μg/kg,재0.05、0.1、0.5 mg/kg삼개질량분수수평진행료첨가회수실험,양품회수솔위75.2%~95.7%,RSD위2.0%~6.1%。해방법구유조작간단,쾌속,정화효과호,정밀도고,중현성호등우점,가응용우채자유중적5충고독농약잔류량적검측。
The GPC–GC–MS/MS method for the determination of 5 high–toxic pesticide residues in rapeseed oil was established. Sample was dissolved by ethyl acetate–cyclohexane( 1∶1,v/v), purified by GPC and detected by GC–MS/MS,and with external standard method for quantitative. The detection limit was 0.2~1.9 μg/kg. When standard levels were 0.05,0.1,0.5 mg/kg,the average recovery rates were in the range of 75.2%~95.7%,and the relative standard deviations were in the range of 2.0%~6.1%. The method had the advantages of simple operation,rapid,good purifying effect,high precision,good reproducibility,and could be used for the detection of the 5 high–toxic pesticide residues in rapeseed oil.