超高效液相色譜-串聯(lián)質(zhì)譜法同時檢測牛奶中7種殺蟲劑殘留

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【摘要】本研究以固相萃取技術(shù)作為樣品前處理方法，通過超高效液相色譜-串聯(lián)質(zhì)譜對處理完的樣品進行定性、定量檢測，建立了同時測定牛奶中辛硫磷、敵敵畏、敵百蟲、滅線磷、滅多威、殺線威和乙酰甲胺磷7種殺蟲劑殘留量的檢測方法。結(jié)果表明，7種殺蟲劑辛硫磷的檢出限為2.0μg/L，定量限為5.0μg/L；殺線威的檢出限為1.0μg/L，定量限為3.0μg/L；敵敵畏、敵百蟲、滅線磷、滅多威和乙酰甲胺磷的檢出限為0.5μg/L，定量限為2.0μg/L；在2.0～500.0μg/kg濃度范圍內(nèi)具有良好線性關(guān)系，R>0.999，平均回收率為70%～95%（RSD

【關(guān)鍵詞】牛奶；殺蟲劑；超高效液相色譜-串聯(lián)質(zhì)譜法；檢測

【DOI編碼】10.3969/j.issn.1674-4977.2024.02.001

Simultaneous Determination of 7 Insecticides in Milk by Ultra-High Performance Liquid Chromatography Tandem Mass Spectrometry

SU Weiyi， YANG Huijie， XU Lijia

（Liaoning Inspection，Examination & Certification Centre〔Liaoning Lnstitute forAgro-product Veterinary Drugs and Feed Control〕， Shenyang 110036， China）

Abstract： Study by using solid phase extraction technique as a pretreatment method， a tandem mass spectrometry on processed samples were detected qualitatively and quantitatively by ultra-high performance liquid chromatography analysis method to set up the milk of Phoxim， dichlorvos， trichlorfon， ethoprophos， methomyl， oxamyl and acephate.The detection limit of phoxim is 2.0μg/L， the quantitative limit of g/Lis 5.0μg/L， the detection limit oxamyl is 1.0μg/L， the quantitative limit of g/Lis 3.0μg/L， the detection limit for dichlorvos， trichlorfon， ethoprophos， methomyl， and acephate is 0.5μg/L， the quantitative limit of g/L is 2.0μg/L in the concentration of 2.0～500.0μg/L range and peak area were showed good linear relationship， R>0.999， the average recovery rate of 70%～95% （RSD

Keywords： milk； insecticide； UPLC-MS/MS； detection

殺蟲劑污染是影響奶源安全性的因素之一。（剩余4295字）