目前商检系统对进口大麦进行品种鉴别主要以感官检验为主，缺乏准确的化学鉴别方法。试用加拿大谷物研究所提供的鉴别大麦品种的ＳＤＳ－ＰＡＧＥ方法，根据本实验室的具体条件进行改进，对中国经常从加拿大进口的６种大麦品种进行了电泳分析，得到的相应图谱与加拿大方法的图谱一致。同时，应用改进后的ＳＤＳ－ＰＡＧＥ方法对通过“东方商人”轮进口的加拿大大麦全船混合样进行了电泳分析，鉴定该批大麦为合同规定的Ｈａｒｉｎｇｔｏｎ品种。 The current commodity inspection system to identify varieties of imported barley mainly sensory test-based, the lack of accurate chemical identification methods. The SDS-PAGE method to identify barley varieties provided by the Canadian Cereal Institute was used to improve the specific barley varieties of the Chinese imported from Canada. The corresponding maps were compared with those of the Canadian method The same map. At the same time, an improved SDS-PAGE method was used to analyze the mixed samples of Canadian barley imported through the “Oriental Traders” round, and the batch of barley was identified as Harington under the contract.