| 气相色谱-负化学源质谱法测定牛奶中氟虫腈及其代谢物残留 |
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| 引用本文： | 罗彤,付文雯,黄坤,张亚珍,张苗,王会霞,石宝琴,郭卢云.气相色谱-负化学源质谱法测定牛奶中氟虫腈及其代谢物残留[J].中国乳品工业,2019(7):39-41. |
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| 作者姓名： | 罗彤 付文雯 黄坤 张亚珍 张苗 王会霞 石宝琴 郭卢云 |
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| 作者单位： | 湖北省食品质量安全监督检验研究院;湖北省食品质量安全检测工程技术研究中心;黄冈市产品质量监督检验所;湖北轻工职业技术学院 |
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| 摘 要： | 建立了气相色谱-负化学源质谱(GC-NCI-MS)测定牛奶中氟虫腈及其3种代谢物残留量的分析方法。牛奶经乙腈提取后,分散固相萃取技术QuEChERS(Quick,Easy,Cheap,Effective,Rugged,Safe)净化,HP-5MS分离,气相色谱-负化学源质谱进行测定,外标法定量。在质量浓度为2.5~100μg/L范围内,氟虫腈及其3种代谢物均有良好的线性关系,所有目标物的定量限(LQD)(S/N=10)均在0.03~0.15μg/kg范围内。样品加标质量分数为0.01,0.02 mg/kg和0.05 mg/kg时,氟虫腈及其3种代谢物的平均回收率为85.6%~102.4%,相对标准偏差(RSD)为3.6%~6.1%。该方法样品前处理简单,分析时间短,回收率和精密度等均符合氟虫腈及其3种代谢物检测技术的要求,适用于牛奶中氟虫腈及其3种代谢物残留的检测。
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| 关 键 词： | QUECHERS 气相色谱-负化学源质谱 氟虫腈及其种代谢物 牛奶 |
Determination of fipronil and its metabolites in milk by gas chromatographynegative chemical ionization mass spectrometry |
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| LUO Tong,FU Wenwen,HUANG Kun,ZHANG Yazhen,ZHANG Miao,WANG Huixia,SHI Baoqin,GUO Luyun.Determination of fipronil and its metabolites in milk by gas chromatographynegative chemical ionization mass spectrometry[J].China Dairy Industry,2019(7):39-41. |
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| Authors: | LUO Tong FU Wenwen HUANG Kun ZHANG Yazhen ZHANG Miao WANG Huixia SHI Baoqin GUO Luyun |
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| Affiliation: | (Hubei Provincial Institute for Food Supervision and Test,Wuhan 430070,China;Hubei Provincial Engineering and Technology Research Center for Food Quality and Safety Test,Wuhan 430075,China;Huanggang Product Quality Supervision and Testing Institute,Huanggang 438000,China;Hubei Light Industry Technology Institute,Wuhan 430070,China) |
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| Abstract: | LUO Tong;FU Wenwen;HUANG Kun;ZHANG Yazhen;ZHANG Miao;WANG Huixia;SHI Baoqin;GUO Luyun(Hubei Provincial Institute for Food Supervision and Test,Wuhan 430070,China;Hubei Provincial Engineering and Technology Research Center for Food Quality and Safety Test,Wuhan 430075,China;Huanggang Product Quality Supervision and Testing Institute,Huanggang 438000,China;Hubei Light Industry Technology Institute,Wuhan 430070,China) |
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| Keywords: | QuEChERS Gas chromatography-negative chemical ionization-mass spectrometry Fipronil and its metabolites Milk |
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