分散固相萃取—超高效液相色谱—四极杆/飞行时间质谱法测定禽肉中松香酸类物质
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(广州检验检测认证集团有限公司国家加工食品质量监督检验中心〔广东〕,广东 广州 511447)

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林晓君(1995—),女,广州检验检测认证集团有限公司助理工程师。E-mail: 1611691126@qq.com

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广州市市场监督管理局科技项目(编号:2022kj49);广州检验检测认证集团有限公司科技项目(编号:2022kj02GZ)


Determination of abietic acid compounds in poultry by ultra performance liquid chromatography-quadrupole time-of-flight mass spectrometry coupled with dispersive solid phase extraction
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(Guangzhou Inspection and Testing Certification Group Co., Ltd., National Quality Testing Center for Processed Food 〔Guangdong〕, Guangzhou, Guangdong 511447, China)

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    摘要:

    目的:建立超高效液相色谱—四极杆/飞行时间质谱法(UPLC-Q-TOF/MS)测定禽肉中松香酸类物质。方法:样品使用乙腈提取,盐析分层后,上清液由C18固相萃取剂净化,UPLC-Q-TOF/MS电喷雾负离子模式测定。结果:3种松香酸类物质在10~500 μg/L质量浓度范围内线性关系良好,相关系数R2>0.998,平均回收率为87.8%~98.5%,相对标准偏差(RSDs)为1.99%~6.71%(n=6);方法检出限(LODs)为10 μg/kg,方法定量限(LOQs)为20 μg/kg。结论:试验方法操作简便,快捷,回收率和灵敏度高,精密度好,能够满足禽肉中3种松香酸类物质的检测需求。

    Abstract:

    Objective: An ultra performance liquid chromatography-quadrupole/time-of-flight mass spectrometry (UPLC-Q-TOF/MS) method was established for the determination of abietic acids in poultry. Methods: The samples were extracted with acetonitrile, then salted out and stratified. The supernatant was purified by C18 solid phase extractant and finally determined by UPLC-Q-TOF/MS in ESI negative mode. Results: Abietic acid compounds exhibited a good linear relationship in the concentration range of 10~500 μg/L with good correlation coefficient R2>0.998. The average recoveries of three abietic acid compounds were experiments, the average recovery rate was 87.8%~98.5% with relative standard deviations (RSDs, n=6) of 1.99%~6.71%, at the spiked level of 20, 40, 200 μg/kg. The limits of detection (LODs) were 10 μg/kg and the method limits of quantification (LOQs) were 20 μg/kg. Conclusion: This method was convenient operation, rapid, high recovery and sensitivity and good precision that could meet the determination requirements of three abietic acids in poultry.

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林晓君,严婉盈,何敏恒,等.分散固相萃取—超高效液相色谱—四极杆/飞行时间质谱法测定禽肉中松香酸类物质[J].食品与机械,2023,39(10):75-79.
LIN Xiaojun, YAN Wanying, HE Minheng, et al. Determination of abietic acid compounds in poultry by ultra performance liquid chromatography-quadrupole time-of-flight mass spectrometry coupled with dispersive solid phase extraction[J]. Food & Machinery,2023,39(10):75-79.

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  • 收稿日期:2022-12-30
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  • 在线发布日期: 2023-12-26
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