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Microbiology Testing

m-ColiBlue24 Broth, 100mL Bottle (MF Media)

Product #: 2608442 (50 Tests)

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In 24 hours, Hach's m-ColiBlue24® Broth give you simultaneous results for total coliforms and E. coli. Hach's ready-to-use media eliminates measuring, mixing, and autoclaving steps necessary to prepare dehydrated media. Glass ampules (26084-20), plastic ampules (260845-00), 100mL bottles (26084-42) of m-ColiBlue24® and agar plates (28052-15), afford maximum shelf life and ease of use for pre-measured and prepared media. Enumerate total coliforms and E. coli on one petri dish. Differentiate colonies easily - red and blue indicate total coliforms and blue specifies E. coli. Get optimal recovery of stressed and injured organisms.

Use m-ColiBlue24® Broth to accurately monitor and evaluate total coliform and E. coli in drinking water; wastewater; bottled water; beverages; surface, ground, and well water; and ultrapure, chemical processing and pharmaceutical processing waters.

m-ColiBlue24 should only be used with pads manufactured by the following companies/brands: Pall Corporation (e.g., Sterile Petri Dishes with Absorbant Pads), Private Label/OEM products manufactured by Pall Gelman, Sartorius (cellulose and glass fiber pads), and Sartorius BioSart products with the integrated Petri dish. No other pad is compatible with the product, and the use of any pad other than those recommended may result in unreliable, inaccurate data.


With ready-to-use m-ColiBlue24® Broth, you can:

Simultaneously detect total coliforms and E. coli—in just 24 hours

Hach’s m-ColiBlue24 Broth simultaneously detects and identifies both total coliforms and Escherichia coli (E. coli). Incubation time is 24 hours for complete enumeration. There is no confirmation step.

Easily read and interpret results

m-ColiBlue24 makes it easy to differentiate between coliforms and E. coliE. coli are blue; other coliforms are red; total coliforms are the sum of the two. It’s that simple.

Save money by eliminating special equipment and UV lamps

m-ColiBlue24 requires no fluorescent lamps or color comparators—interpretation of the results is through easy, visual identification.

Minimize background growth of non-coliform bacteria, reduce false positives and false negatives, plus get superior sensitivity down to 1 CFU/100 mL

Enumerate test results directly with m-ColiBlue24 Broth. m-ColiBlue24 is much more accurate and precise than statistical-based tests such as Most Probable Number (MPN) and Multiple Tube Fermentation (MTF).

Conduct emergency testing and routine monitoring

m-ColiBlue24 is the best value for an EPA-approved, 24-hour media for enumeration of total coliforms and E. coli.