对用含瘦肉增长素 (MAT)的饲料喂养猪的猪肉样品进行检查。样品取自添加瘦肉增长素饲料喂养的 6头猪的不同部位 ,经生理盐水浸泡后 ,研磨成乳糜状 ,用乙醚提取。以 MT为内标进行 GC/ MS定量分析。实验结果表明 :41个样品呈阴性 ,只有 6号猪的右耳样品呈阳性 ,经内标定量计算 ,10 g右耳猪肉中含 2 .2 μg MAT。该实验提示可用 GC/ MS定性定量分析 MAT。 Pig samples from pigs fed lean growth factor (MAT) were examined. Samples were taken from 6 pigs fed different lean growth hormone supplemented diets. After soaking in physiological saline, they were ground into chylous and extracted with ether. GC / MS quantitative analysis with MT as internal standard. The experimental results showed that: 41 samples were negative, only the right ear samples of No. 6 pigs were positive, according to the internal standard quantitative calculation, 10 g of right ear pork containing 2.2 g MAT. This experiment suggests that MAT can be qualitatively and quantitatively analyzed by GC / MS.