大肠菌群测定是判断食品、饮用水、环境等是否受到粪便污染以及污染程度、评价其卫生质量的重要指标之一。目前大肠菌群的测定方法有很多,主要有发酵法、滤膜法、纸片法等。而发酵法则为许多实验室普遍采用的传统方法,因其操作简单,结果准确,被列入国家标准检验方法第一法。目 Coliform bacteria determination is to determine food, drinking water, the environment is contaminated by the stool and pollution levels, evaluate the health of one of the important indicators. At present, there are many methods for the determination of coliforms, including fermentation, membrane filtration, and paper method. The fermentation law is commonly used in many laboratories traditional methods, because of its simple operation, accurate results, was included in the first national standard test method. Head