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E. coli Detection by Membrane Filtration

Categories Materials Testing Lab
Microbiology Laboratory
Test E. coli Detection by Membrane Filtration
Description
EMSL Analytical, Inc is capable of detecting and enumerating Escherichia coli in drinking water, groundwater or surface water using a membrane filtration method.

The membrane filtration technique involves a direct plating and estimation of colony densities. E. coli is a member of the fecal coliform group of bacteria; its presence is indicative of fecal coliform contamination. E. coli conforms to taxonomic as well as functional identification criteria and is enzymatically distinguished by the lack of urease and presence of b -D-glucuronidase, which binds to a fluorogenic substrate producing a fluorogen.

EMSL Analytical Code: M021
Method: SM9222G
Bottle Size: 120 mL
Regulatory Hold Time: 8 hr non-potable, 30 all others
Sample retention time - 1 week

*Water hold times apply only if the sample is for compliance purposes.



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