Water analysis rapid test Colilert 250

Escherichia colifor water

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. No glassware cleaning or colony counting. Accurate Suppresses up to 5 million per 250 mL. Eliminates the subjective interpretation found in traditional methods. Detects a single viable coliform or E. coli per sample. Economical Minimizes evening and weekend work. Up to 12-month shelf life at room temperature. Science The Colilert 250 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 the Colilert 250 Test and can be metabolized by the coliform enzyme β-galactosidase and the E. coli enzyme β-glucuronidase, respectively.