A method was developed for determining residual clenbuterol and ractopamine in animal liver(tissues) using solid phase extraction(SPE) with gas chromatography-mass spectrometry(GC-MS).

• 建立了同时测定动物肝组织中盐酸克伦特罗和盐酸莱克多巴胺残留量的固相萃取-气相色谱-质谱分析方法。