Membrane filtration media for the enumeration of coliform organisms and Escherichia coli in water: comparison of Tergitol 7 and lauryl sulphate with Teepol 610
Abstract:SUMMARYIn a multi-laboratory trial with the membrane filtration technique, three surfactants -Teepol 610 (T610), Tergitol 7 (T7) and sodium lauryl sulphate (LS) -were compared in media for the enumeration of coliform organisms and Escherichia coli in water. A total of 179 samples of water (87 raw and 92 marginally chlorinated) were examined for colony counts of coliform organisms, and 185 water samples (94 raw and 91 marginally chlorinated) for E. coli. Slight differences in the confirmed colony counts between… Show more
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