食品科学 ›› 2010, Vol. 31 ›› Issue (2): 154-156.doi: 10.7506/spkx1002-6300-201002039

• 分析检测 • 上一篇    下一篇

液相色谱-串联质谱方法检测速冻调制肉制品中糖皮质激素类药物残留

李 飞1,2,谷丽丽1,2,张 岩2,赵宝华1,*   

  1. 1.河北师范大学生命科学学院 2.河北省食品安全重点实验室
  • 收稿日期:2009-02-27 修回日期:2009-08-19 出版日期:2010-01-15 发布日期:2010-12-29
  • 通讯作者: 赵宝华 E-mail:zhaobaohua86178@sohu.com
  • 基金资助:

    河北省科技支撑计划重点项目(07276709D)

LC-MS/MS Determination of Glucocorticoids Residues in Quick-Frozen Meat Products

LI Fei1,2,GU Li-li1,2,ZHANG Yan2,ZHAO Bao-hua1,*   

  1. (1. College of Life Science, Hebei Normal University, Shijiazhuang 050016, China;
    2. Hebei Provincial Key Laboratory of Food Safety, Shijiazhuang 050051, China)
  • Received:2009-02-27 Revised:2009-08-19 Online:2010-01-15 Published:2010-12-29
  • Contact: ZHAO Bao-hua1,* E-mail:zhaobaohua86178@sohu.com

摘要:

建立液相色谱- 串联质谱法检测速冻调制肉制品中糖皮质激素类药物残留的方法。样品经乙酸乙酯提取后,过Silica 固相萃取柱净化,最后用乙腈定容,经液相色谱- 串联质谱仪测定。样品采用外标峰面积法进行定量,该方法的最小检出限量分别为0.2、0.5、1.0μg/kg,定量限分别为0.5、1.0、2.0μg/kg,添加回收率范围为85.0%~96.4%,RSD 为2.3%~6.1%。

关键词: 液相色谱-串联质谱, 糖皮质激素, 残留检测

Abstract:

A liquid chromatography coupled with tandem mass spectrometric (LC-MS/MS) method was established for the determination of 7 glucocorticoids residues in quick-frozen meat products. Samples were extracted with ethyl acetate, cleaned up with a silica solid-phase extraction (SPE) cartridge and diluted with acetonitrile prior to LC-MS/MS analysis. Glucocorticoids were quantified with external standard method. The limit of detection (LOD) and limit of quantification (LOQ) were 0.2, 0.5 μg/kg respectively for prednisone, prednisolone, dexamethasone, betamethasone, 0.5 μg/kg and 1.0 μg/kg respectively for beclomethasone and fludrocortisone, and 1.0, 2.0 μg/kg respectively for hydrocortisone. Spike recoveries for the seven glucocorticoids ranged from 85.0% to 96.4% with a relative standard deviation within the range of 2.3%-6.1%.

Key words: LC-MS/MS, glucocorticoids, residue analysis

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