色谱
色譜
색보
CHINESE JOURNAL OF CHROMATOGRAPHY
2014年
5期
524-528
,共5页
高洋洋%张朝晖%刘鑫%卢晓宇%严华%何悦%杨大进%云环
高洋洋%張朝暉%劉鑫%盧曉宇%嚴華%何悅%楊大進%雲環
고양양%장조휘%류흠%로효우%엄화%하열%양대진%운배
超高效液相色谱-串联质谱%磺胺增效剂%动物源性食品
超高效液相色譜-串聯質譜%磺胺增效劑%動物源性食品
초고효액상색보-천련질보%광알증효제%동물원성식품
ultra performance liquid chromatography-tandem mass spectrometry( UPLC-MS/MS)%sulfonamide potentiators%animal origin foods
建立了一种超高效液相色谱-串联质谱( UPLC-MS/MS)测定多种基质(鸡肉、鱼肉、鸡肝、鸡蛋和牛奶)中三甲氧苄氨嘧啶、二甲氧苄胺嘧啶和二甲氧甲基苄胺嘧啶的分析方法。样品用甲酸-乙腈(1:9,v/v)溶液提取,正己烷除脂净化,Acquity UPLC BEH C18柱(50 mm×2.1 mm,1.7μm)分离,以甲醇和5 mmol/L 醋酸铵(含0.1%(v/v)甲酸)作为流动相进行梯度洗脱,电喷雾正离子( ESI+)模式电离,多反应监测( MRM)模式检测。考察了3种提取溶液的提取效率,优化了净化条件和浓缩条件,并对流动相、柱温和固相萃取柱进行了优化。结果表明:三甲氧苄氨嘧啶、二甲氧苄胺嘧啶和二甲氧甲基苄胺嘧啶在1.25~30.0μg/L范围内线性关系良好( r≥0.99)。方法的定量限(S/N=10)为5.0μg/kg,在5.0、10.0、20.0μg/kg 的添加浓度的回收率为61.2%~108.5%,相对标准偏差( RSD,n=6)为1.1%~9.8%。该方法快速、灵敏、准确,适合于多种基质中磺胺增效剂的测定。
建立瞭一種超高效液相色譜-串聯質譜( UPLC-MS/MS)測定多種基質(鷄肉、魚肉、鷄肝、鷄蛋和牛奶)中三甲氧芐氨嘧啶、二甲氧芐胺嘧啶和二甲氧甲基芐胺嘧啶的分析方法。樣品用甲痠-乙腈(1:9,v/v)溶液提取,正己烷除脂淨化,Acquity UPLC BEH C18柱(50 mm×2.1 mm,1.7μm)分離,以甲醇和5 mmol/L 醋痠銨(含0.1%(v/v)甲痠)作為流動相進行梯度洗脫,電噴霧正離子( ESI+)模式電離,多反應鑑測( MRM)模式檢測。攷察瞭3種提取溶液的提取效率,優化瞭淨化條件和濃縮條件,併對流動相、柱溫和固相萃取柱進行瞭優化。結果錶明:三甲氧芐氨嘧啶、二甲氧芐胺嘧啶和二甲氧甲基芐胺嘧啶在1.25~30.0μg/L範圍內線性關繫良好( r≥0.99)。方法的定量限(S/N=10)為5.0μg/kg,在5.0、10.0、20.0μg/kg 的添加濃度的迴收率為61.2%~108.5%,相對標準偏差( RSD,n=6)為1.1%~9.8%。該方法快速、靈敏、準確,適閤于多種基質中磺胺增效劑的測定。
건립료일충초고효액상색보-천련질보( UPLC-MS/MS)측정다충기질(계육、어육、계간、계단화우내)중삼갑양변안밀정、이갑양변알밀정화이갑양갑기변알밀정적분석방법。양품용갑산-을정(1:9,v/v)용액제취,정기완제지정화,Acquity UPLC BEH C18주(50 mm×2.1 mm,1.7μm)분리,이갑순화5 mmol/L 작산안(함0.1%(v/v)갑산)작위류동상진행제도세탈,전분무정리자( ESI+)모식전리,다반응감측( MRM)모식검측。고찰료3충제취용액적제취효솔,우화료정화조건화농축조건,병대류동상、주온화고상췌취주진행료우화。결과표명:삼갑양변안밀정、이갑양변알밀정화이갑양갑기변알밀정재1.25~30.0μg/L범위내선성관계량호( r≥0.99)。방법적정량한(S/N=10)위5.0μg/kg,재5.0、10.0、20.0μg/kg 적첨가농도적회수솔위61.2%~108.5%,상대표준편차( RSD,n=6)위1.1%~9.8%。해방법쾌속、령민、준학,괄합우다충기질중광알증효제적측정。
A method for the determination of sulfonamide potentiators,trimethoprim( TMP), diaveridine(DVD)and ormetoprin(OMP),in different animal origin food matrices(including chicken muscle,fish muscle,chicken liver,egg and milk)has been developed by ultra perform-ance liquid chromatography-tandem mass spectrometry( UPLC-MS/MS). The sample was extrac-ted by formic acid-acetonitrile(1:9,v/v),cleaned-up by hexane,separated on an Acquity UPLC BEH C18 column(50 mm×2.1 mm,1.7 μm)with gradient elution. The determination was car-ried out with electrospray ion source under the positive mode and multiple reaction monitoring ( MRM)mode. The extraction recoveries of three extraction solvents were observed. The purifica-tion condition and concentration condition were optimized. In addition,the mobile phase,col-umn temperature and solid phase extraction column were studied. The calibration curves showed a good linearity in the range of 1. 25-30. 0 μg/L,and the correlation coefficients( r)were higher than 0. 99. The limits of quantification( LOQ,S/N=10)of the three potentiators were 5. 0 μg/kg. At the spiked levels of 5. 0,10. 0 and 20. 0 μg/kg,the recoveries of the three potentiators were ranged from 61. 2% to 108. 5%,and the relative standard deviations( RSD,n=6)ranged from 1. 1% to 9. 8%. The results indicate that the method is simple,rapid,sensitive and suitable for the qualitative and quantitative analysis of the three potentiators in multiple matrices.