Overview
Easy
- Ready-to-use media.
- Simple procedure.
- Most Probable Number (MPN) enumeration.
- Unit-dosed packaging eliminates media preparation.
- Reagent contains no toxic compounds.
Rapid
- Confirmed results in 24 hours.
- Simplified quality control.
- Less than 1 minute of hands-on time.
Accurate
- More accurate when compared to ISO 7899-2 on all samples.
- More accurate when compared to Microbiology of Drinking Water (MoDW) 2006, part 5, on chlorine-stressed samples.
- Liquid enrichment ensures optimized recovery.
- Eliminates subjective interpretation of results determined by traditional methods.
Science
How the Enterolert-DW Test works
The Enterolert-DW Test uses a Defined Substrate Technology (DST) nutrient indicator to detect enterococci. When coupled with the IDEXX Quanti-Tray System, the Enterolert-DW Test provides quantitative confirmed results in 24 hours. The Enterolert-DW Test utilizes ortho-nitrophenyl-β-D-glucoside as a nutrient indicator and incorporates a specifically designed blue background color in its formulation. When the enzyme substrate is metabolized by enterococci, the sample turns from blue to green to indicate detection. Any change from the original color to green is considered a positive result. No ultraviolet light source is required.
How to use
Quantification
Step 1
Add reagent to sample. Cap vessel and shake to mix.
Step 2
Add sample reagent to Quanti-Tray (counts from 1–200) or Quanti-Tray/2000 (counts from 1–2,419).
Seal using Step 4
Count positive wells and refer to most probable number (MPN) table.
