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近年来国内外对某些样本,不仅做细菌的分离培养同时进行菌数测定,这不仅能指示样本中是否有被检菌,并可指示被检菌的数量。目前采用的方法:有选择性增菌分离计数法与平板表面直接涂抹检查法。我们在检验本地区污水中沙门氏菌时发现阳性率为百分之百,并将其中28份样本试验性采用水源水大肠菌群测定法做了沙门氏菌菌数测定,现将方法与结果介绍如下。
In recent years, at home and abroad for some samples, not only to do bacterial separation and culture at the same time the number of bacteria, which not only indicates whether the sample was seized bacteria, and can indicate the number of bacteria seized. Currently used methods: selective enrichment by counting method and direct smear flat surface inspection method. We test the region of Salmonella in sewage was found when the positive rate was 100%, and 28 of the samples were tested using water-based coliform bacteria Salmonella assay, the methods and results are described below.