Description
Enumeration (quantification) based on the Most Probable Number (MPN) method, made more accurate by the McGrady probability of sulfate-reducing bacteria (SRB) and the use of the Microtest SR test.
Procedure:
1 - You send us a sample to be analyzed in an airtight container filled to the brim with approximately 0.5 to 1 liter. It's important to fill it to the brim to avoid oxygenation of the sample, as sulfate-reducing bacteria are anaerobic, i.e. they live in the absence of oxygen.
2- We proceed with the analysis by inoculation of 27 Microtest SR tubes, i.e. 9 dilutions in 3 rows using the Most Probable Number (MPN) method.
3 - We read the results up to 10 days of incubation, knowing that results can arrive in 1 or 2 days in the event of heavy contamination, and give a count using the McGrady method. A report will be sent to the customer.
Remarks :
A - We can make more than 9 dilutions on request, if very high contamination is suspected.
B - Microtest SR are also available for sale if you wish to carry out the detection or enumeration yourself.
C - We accept all types of samples, even heterogeneous ones (aqueous media, sludge, silage residues, etc.). If the medium is not liquid enough, it will be resuspended with sterile water.
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