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首页> 外文期刊>Applied and Environmental Microbiology >Total coliform detection in drinking water: comparison of membrane filtration with Colilert and Coliquik.
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Total coliform detection in drinking water: comparison of membrane filtration with Colilert and Coliquik.

机译：饮用水中大肠菌群的总检测：与Colilert和Coliquik进行膜过滤的比较。

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摘要

The Colilert (CL) and Coliquik (CQ) systems were compared in a presence-absence format against the Standard Methods membrane filtration (MF) technique to determine whether differences existed in total coliform detection. Approximately 750 water samples were collected from distribution systems, covered and uncovered storage reservoirs, well sites, and the influent to drinking water treatment plants. Samples were analyzed for total coliforms and heterotrophic bacteria with MF, CL, and CQ. The agreements between CL and MF and between CQ and MF were both greater than 94.8%, which indicates that both may be acceptable methods for total coliform detection. Disagreement between the CL and CQ methods was primarily due to false-negative results. Furthermore, laboratory and field inoculation methods were compared for CL, more than 98% agreement was obtained. This finding indicates that sampling and immediate field inoculation may be an alternative to the traditional laboratory inoculation.
机译：将Colilert（CL）和Coliquik（CQ）系统以不存在的形式与标准方法膜过滤（MF）技术进行了比较，以确定总大肠菌群检测中是否存在差异。从配水系统，有盖和无盖的储水库，井场以及饮用水处理厂的进水口收集了大约750个水样。用MF，CL和CQ分析样品的总大肠菌群和异养细菌。 CL和MF之间以及CQ和MF之间的协议均大于94.8％，这表明两者都可能是总大肠菌群检测的可接受方法。 CL和CQ方法之间的分歧主要是由于假阴性结果。此外，比较了实验室和野外接种方法的CL，获得了98％以上的一致性。这一发现表明，采样和立即现场接种可能是传统实验室接种的替代方法。

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