作者简介：张莹(1990—)，女，北京人，本科，主管检验师。研究方向：微生物检验。

    摘 要：为探究酶底物法检测饮用水中大肠埃希氏菌的准确性和便捷性，从不同地点采集水样，采用标准检测法和酶底物法同时检测饮用水中的大肠埃希氏菌。结果表明，标准检测法检测出16份阳性样品和

    3份阴性样品，酶底物法检测出17份阳性样品和2份阴性样品，两种方法检测的阳性率无显著性差异(P>0.05)；14份样品最大可能数一致，5份样品最大可能数有差异，酶底物法检测的灵敏度高于标准检测法。本研究为饮用水中微生物的快速、高效检测提供了数据基础。

    关键词：大肠埃希氏菌；饮用水；酶底物法

    Study on Detection of Escherichia coli in Drinking Water Based on Enzyme Substrate Method

    ZHANG Ying， ZHAO Hui， SU Dongxia， CUI Yujuan， ZHAO Lu

    (Beijing Yanqing District Center for Disease Control and Prevention， Beijing 102100， China)

    Abstract： In order to understand whether the enzyme substrate method can quickly and accurately detect Escherichia coli in drinking water， water samples were collected from different locations， and standard detection method and enzyme substrate method were used" to detect Escherichia coli in drinking water at the same time. The results showed that 16 positive samples and 3 negative samples were detected by standard detection method ......