食品科学 ›› 2013, Vol. 34 ›› Issue (22): 208-211.doi: 10.7506/spkx1002-6630-201322042

• 分析检测 • 上一篇    下一篇

液相色谱串联质谱法测定水产品中苯甲酸雌二醇的残留

张珊珊,于慧娟,惠芸华,冯 兵,张晓玲   

  1. 1.上海海洋大学食品学院,上海 201306;
    2.中国水产科学研究院东海水产研究所,水产品质量安全加工实验室,上海 200090
  • 收稿日期:2013-07-01 修回日期:2013-10-11 出版日期:2013-11-25 发布日期:2013-12-05
  • 通讯作者: 于慧娟 E-mail:yuhuijuan607@sohu.com
  • 基金资助:

    农业部行业标准制定项目

Determination of Estradiol Benzoate Residues in Aquatic Products by LC-MS-MS

ZHANG Shan-shan,YU Hui-juan,HUI Yun-hua,FENG Bing,ZHANG Xiao-ling   

  1. 1. College of Food Science and Technology, Shanghai Ocean University, Shanghai 201306, China;
    2. Laboratory of Aquatic Products Quality Safety and Processing, East China Sea Fisheries Research Institute,Chinese Academy of Fishery Sciences, Shanghai 200090, China
  • Received:2013-07-01 Revised:2013-10-11 Online:2013-11-25 Published:2013-12-05
  • Contact: Yu Hui-Juan E-mail:yuhuijuan607@sohu.com

摘要:

通过对前处理以及仪器方法的研究和优化,建立水产品中苯甲酸雌二醇残留的液相色谱串联质谱检测方法。样品经甲基叔丁基醚提取,LC-C18固相萃取小柱净化,甲醇-水溶液定容后离心去脂。采用甲醇-水为流动相,经Waters XBridge RP-18色谱柱(150mm×4.6mm,5μm)分离后,电喷雾串联质谱测定,以甲羟孕酮-D3为内标进行定量。在标准添加水平1~10μg/kg范围内,加标回收率为77.9%~113.5%,相对标准偏差不超过9.4%,定量限为1μg/kg。该方法灵敏度高,重复性好,适用于各种水产品中苯甲酸雌二醇残留量的测定。

关键词: 苯甲酸雌二醇, 水产品, 酶解, 液相色谱串联质谱

Abstract:

A high performance liquid chromatography-tandem mass spectrometric (LC-MS-MS) method has been
established for the determination of estradiol benzoate residues in aquatic products. Sample pretreatment conditions and
instrumental parameters were optimized. Samples were extracted with methyl tert-butyl ether, cleaned up on an LC-C18 solid
phase extraction column and degreased with methanol-water. Separation of the analyte was carried out on Waters XBridge
RP-18 column (150 mm × 4.6 mm i.d., 5 μm) using a mobile phase made up of methanol and water before analysis by
electrospray ionization LC-MS-MS using medroxyprogesterone-D3 as internal standard. The limit of quantification of this
method was 1 μg/kg. The average recovery from samples spiked in the range of 1 to 10 μg/kg was 77.9%–113.5%, with
RSD less than 9.4%. This method was sensitive, reproducible, and suitable for the determination of estradiol benzoate in
various aquatic products.

Key words: estradiol benzoate, aquatic products, enzymatic hydrolysis, high performance liquid chromatographytandem mass spectrometry (LC-MS-MS)

中图分类号: