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The Colilert test simultaneously detects or quantifies both total coliforms and Escherichia coli, with results in 24 hours. U.S. EPA approved and included in Standard Methods for Examination of Water and Wastewater .
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The Colilert-18 test uses a proprietary Defined Substrate Technology (DST) nutrient indicators ONPG and MUG to detect coliforms and E. coli. Coliforms use their β-galactosidase enzyme to metabolize ONPG and change it from colorless to yellow.
The Colilert Test uses proprietary Defined Substrate Technology (DST) to simultaneously detect total coliforms and E. coli. Two nutrient-indicators, ONPG and MUG, are the major sources of carbon in Colilert and can be metabolised by the coliform enzyme β-galactosidase and the E. coli enzyme β-glucuronidase, respectively.
Colilert-18 can be used for detecting E. coli in marine waters (not for total coliforms, unless evaluated by the specific site). Make at least a 1:10 dilution
IDEXX Colilert family of tests provides for the rapid, accurate detection of E. coli and coliforms in 18 or 24 hours, with no confirmations needed. Globally accepted and EPA-approved for drinking, wastewater and recreational waters. Our easy-to-use platform has been helping people around the world monitor water quality for over 20 years.
The Colilert-18 test uses proprietary Defined Substrate Technology (DST) nutrient indicators ONPG and MUG to detect coliforms and E. coli. Coliforms use their β-galactosidase enzyme to metabolise ONPG and change it from colourless to yellow.
Overview. Easy. Ease of use simplifies training. Unit-dosed packaging eliminates media preparation. No repeat testing due to clogged filters or heterotrophic interference. Quality Control (QC) procedure can be done in 15 minutes. Rapid. Less than 1 minute of hands-on time. Detects coliforms and E. coli simultaneously in 24 hours or less.
