The ECA Check membrane filter kit from Micrology Laboratories.

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Micrology Laboratories have developed a new technology called ECA Check which extends the capability of their Coliscan easygel method.

ECA Check distinguishes between E coli, coliforms, Aeromonas and Salmonella by detecting the enzymes released by these species. It is only available for the Membrane Filter method.

When these different bacteria groups grow on the ECA Check media they are visible as different colours. E coli show up as dark blue / black, coliforms as blue / gray, Aeromonas as pink and Salmonella spp as green. Take a look at how the different types of bacteria appear at ECA Check colour guide.

Aeromonas spp are common in water supplies and are generally considered pathogenic because they can cause diseases. Their presence and numbers is generally considered to be a good indicator of water quality. Up to now water quality regulations do not usually specify maximum allowable numbers of Aeromonas spp. But the new Micrology kits mean that it is now possible to monitor these important bacteria in water supplies.

In the Membrane filtration method a known quantity of water is filtered through a very fine filter which traps any bacteria. Therefore you are actually capturing all the bacteria in a reasonably representative sample. The filter is removed and incubated on a prepared growth medium at around 34 - 36 degrees C for 18 - 24 hrs when the first colonies should appear.

Check out this easy step by step guide - in pictures to see how the ECA Check kits work ECA Check step by step.

Membrane filtration is traditionally a tedious process but not any more with the Micrology Labs Membrane filtration kit. The kits contain a filter apparatus, filters, dishes to grow the bacteria, pipettes and growth media - enough for 20 tests. For the next 20 tests just buy the consumables kit. This has all components except the filter and syringe.


See the ECA CHECK Membrane Filter kits in our catalogue at Bacteria test kits.

Check out our other help pages for information on choosing and using the Easygel test kits How to test your water for bacteria, Coliscan Easygel kits and Choosing bacteria test kits.


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