动物饲料中克伦特罗的气质色谱法测定研究

Determination of Clenbuterol in Animal Feed by GC/MS

本文建立了动物饲料中克伦特罗的气质色谱法测定方法 ,试样中克伦特罗经提取 ,净化 ,衍生 ,采用GC/MS /SIM方式进行测定 ,外表法定量。试验表明 ,试样中添加 0 .2～ 5.0mg/kg浓度水平的克伦特罗 ,方法回收率在 92 .0～ 98.7% ,克伦特罗的检测限为 0 .0 5mg/kg。

In this paper, a method of GC/MS to determine clenbuterol in animal feeds was established. Clenbuterol was extracted using chloroform. Through derivazation, quantitation was carried by GC/MS using SIM on external method. The average recoveries were between 92.0%and 98.7% when clenbuterol was added to feeds in 0.5～5.0ppm levels.The detection limit for clenbuterol in animal feeds was 0.05ppm.