›› 2009, Vol. 36 ›› Issue (9): 74-78.

• 生物技术 • 上一篇    下一篇

饲料中3种四环素类药物的高效毛细管电泳检测方法

饶钦雄1,任琳琳2,童敬2,郭平3,李海燕3,丁双阳2   

  1. (1.上海农业科学院农产品质量标准与检测技术研究所, 上海 201106; 2.中国农业大学 动物医学院/国家兽药残留基准实验室, 北京 100193; 3. 中华人民共和国江西出入境检验检疫局, 南昌 330002)
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2009-09-20 发布日期:2009-09-20
  • 通讯作者: 丁双阳

Determination of Tetracyclines in Fowl Feeds and Premix by High Performance Capillary Electrophoresis

RAO Qin-xiong1, REN Lin-lin2, TONG Jing2, GUO Ping3, LI Hai-yan3, DING Shuang-yang2   

  1. (1.Institute for Agr-food Standards and Testing Technology, Shanghai Academy of Agricultural Sciences, Shanghai 201106, China; 2.National Reference Laboratories for Veterinary Drug Residue, Department of Veterinary Pharmacology and Toxicology, College of Veterinary Medicine, China Agricultural University, Beijing 100193, China; 3.Jiangxi Entry-Exit and Inspection and Quarantine, Nanchang 330002, China)
  • Received:1900-01-01 Revised:1900-01-01 Online:2009-09-20 Published:2009-09-20
  • Contact: DING Shuang-yang

摘要: 作者建立了鸡饲料中四环素、土霉素和多西环素的高效毛细管电泳检测方法。3种药物在40 mmol/L磷酸氢二钠—20 mmol/L柠檬酸(pH 2.6)的电泳缓冲液、30 kV的分离电压、长度64.5 cm、内径75 μm的毛细管内得到完全分离。在1~80 mg/kg范围内3种药物线性良好,R2>0.994;配合饲料和预混料中3种药物的定量限分别为2和4 mg/kg;添加回收试验回收率>80%,方法的日内变异系数和日间变异系数均<10%。

关键词: 四环素; 土霉素; 多西环素; 高效毛细管电泳; 饲料

Abstract: A high performance capillaty electrophoresis (HPCE) method has been established for the separation of tetracycline1, oxytetracycline and doxycycline in fowl feeds and premix. Separation was carried out in a 64.5 cm×75 μm I.D. fused-silica uncoated capillary in 40 mmol/L Na2HPO4-20 mmol/L Citric acid buffer (pH 2.6) with 30 kV. The linear of the melamine was 1 mg/kg to 80 mg/kg, and correlation index was higher than 0.994. Limit of quantitations of feeds and premix were 2 mg/kg and 4 mg/kg, respectively. The average recoveries were higher than 80% in the spiked range from the concentration of 2 mg/kg to 80 mg/kg, and RSDs were lower than 10%. 

Key words: tetracyclinel; oxytetracycline; doxycycline; HPCE; feeds

中图分类号: