粮油食品科技
糧油食品科技
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SCIENCE AND TECHNOLOGY OF CEREALS,OILS AND FOODS
2014年
4期
54-57
,共4页
食品%苯并(α)芘(B(α)P)%微波辅助萃取(MAE)%液相色谱-质谱/质谱(LC -MS /MS)
食品%苯併(α)芘(B(α)P)%微波輔助萃取(MAE)%液相色譜-質譜/質譜(LC -MS /MS)
식품%분병(α)비(B(α)P)%미파보조췌취(MAE)%액상색보-질보/질보(LC -MS /MS)
foods%benzo (α)pyrene (B (α)P)%microwave -assisted extraction (MAE)%liquid chromatography -mass spectrometry/mass spectrometry(LC-MS/MS)
为建立食品中苯并(α)芘(B(α)P)含量的微波辅助萃取-液相-质谱(MAE-LC-MS/MS)测定方法。样品经微波辅助萃取技术(MAE)前处理,用反相色谱柱分离,流动相为乙腈-水(70:30,V/V),流速0.2ml/min,用串连三重四极杆以电喷雾正离子MRM模式检测,以B(α)P252.3→224.3、B(α)P-d12264.4→232.4为定量离子对,采用B(α)P-d12内标法定量。结果表明:B(α)P的检出限为0.01μg/kg,标准曲线线性范围为0~10μg/mL、相关系数为0.9999。精确度良好,日内RSD<0.5%、日间RSD<1%,回收率为97%~103%。可用于测定食品中B(α)P含量。
為建立食品中苯併(α)芘(B(α)P)含量的微波輔助萃取-液相-質譜(MAE-LC-MS/MS)測定方法。樣品經微波輔助萃取技術(MAE)前處理,用反相色譜柱分離,流動相為乙腈-水(70:30,V/V),流速0.2ml/min,用串連三重四極桿以電噴霧正離子MRM模式檢測,以B(α)P252.3→224.3、B(α)P-d12264.4→232.4為定量離子對,採用B(α)P-d12內標法定量。結果錶明:B(α)P的檢齣限為0.01μg/kg,標準麯線線性範圍為0~10μg/mL、相關繫數為0.9999。精確度良好,日內RSD<0.5%、日間RSD<1%,迴收率為97%~103%。可用于測定食品中B(α)P含量。
위건립식품중분병(α)비(B(α)P)함량적미파보조췌취-액상-질보(MAE-LC-MS/MS)측정방법。양품경미파보조췌취기술(MAE)전처리,용반상색보주분리,류동상위을정-수(70:30,V/V),류속0.2ml/min,용천련삼중사겁간이전분무정리자MRM모식검측,이B(α)P252.3→224.3、B(α)P-d12264.4→232.4위정량리자대,채용B(α)P-d12내표법정량。결과표명:B(α)P적검출한위0.01μg/kg,표준곡선선성범위위0~10μg/mL、상관계수위0.9999。정학도량호,일내RSD<0.5%、일간RSD<1%,회수솔위97%~103%。가용우측정식품중B(α)P함량。
Benzo (α)pyrene (B (α)P)content in foods was determined by MAE -LC -MS /MS.The samples were pre -treated by MAE,separated by reversed -phase column,with mobile phase acetoni-trile -water (70∶30,V /V),flow rate 0.2 mL/min,detected by series triple quadrupole electrospray positive ion MRMmode,taken B (α)P 252.3→224.3,B (α)P -d12 264.4→232.4 as quantitative ion pair,quantitated them by B (α)P -d12 internal standard.The result showed that B (α)P detec-tion limit was 0.01 μg/kg,the linear range of standard curve was 0 ~10 μg/mL,the correlation coeffi-cient was 0.999 9 ,good precision:RSD within day <0.5% ,RSD between days <1%,recovery rate 97%~103 %.The method can be used to determine B (α)P content in foods.