固相萃取-液相色谱-串联质谱法同时测定牛奶中双酚A、双酚F和双酚S
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(国家食品质量安全监督检验中心 北京 100094)

作者简介:

李星(1989—),女,硕士,工程师

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基金项目:

科技部重点科技计划项目(2017YFC1601003);北京市科技计划项目(Z181100009318011)


Determination of Bisphenol A, Bisphenol F and Bisphenol S in Milk by High Liquid Chromatography-Tandem Mass Spectrometry with Solid-Phase Extraction
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(China National Food & Safety Supervision and Inspection Center, Beijing 100094)

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    摘要:

    为建立同时测定牛奶中双酚A、双酚F和双酚S含量的液相色谱-串联三重四极杆质谱联用方法,将样品用氨水 ∶ 乙腈溶液(1 ∶ 9,体积比)溶解,超声提取,PRiME HLB固相萃取柱净化,用安捷伦Poroshell 120 PFP色谱柱(100 mm×4.6 mm,2.7 μm)分离,采用负离子多反应监测模式监测,内标法定量。在此优化条件下,牛奶中双酚A、双酚F和双酚S的定量限均为2.0 μg/kg,平均方法回收率在90.4%~103.1%范围,平均相对标准偏差为2.76%~7.34%(n=6)。此方法的准确性和重复性良好,适用于牛奶中双酚A、双酚F和双酚S含量的检测。

    Abstract:

    A high liquid chromatography-tandem mass spectrometry method with solid phase extraction was established for the determination of bisphenol A,bisphenol F and bisphenol S in milk. The samples were ultrasonically extracted with ammonia and acetonitrile (1 ∶ 9, V/V), purified by PRiME HLB solid phase extraction column, and separated on an Agilent Poroshell 120 PFP column (100 mm×4.6 mm, 2.7 μm). Bisphenol A, bisphenol F and bisphenol S were detected in a multiple reaction monitoring mode, and quantified by the external standard method. Under the optimized conditions, the limits of quantification of bisphenol A, bisphenol F and bisphenol S in milk were all 2.0 μg/kg. Method recovery was at the range of 90.4%-103.1% and the relative standard deviations from 2.76%-7.34% (n=6). This method had good accuracy and reproducibility, and was suitable for the detection of bisphenol A, bisphenol F and bisphenol S residues in milk.

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李星,王浩,张文超,张烨,巴冬梅,冉令磊.固相萃取-液相色谱-串联质谱法同时测定牛奶中双酚A、双酚F和双酚S[J].中国食品学报,2022,22(4):382-386

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  • 收稿日期:2021-04-24
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  • 在线发布日期: 2022-05-26
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