The most probable number (MPN) test method estimates the number of indicator bacteria that is most likely present in a water sample. This demo will show how to conduct a MPN test using a Hach Pathoscreen Test Kit.
Multiple samples (1-10 mL) of the same water to be tested are added to a culture media in sterile tubes and incubated at a particular temperature for a fixed time (usually 24 hours). By counting the number of tubes showing a positive result and comparing with a standard table, a statistical estimate of the most probable number of bacteria can be made. The results are reported as MPN per 100 mL.
The most probable number (MPN) test method estimates the number of indicator bacteria that is most likely present in a water sample. This demo will show how to conduct a MPN test using a Hach Pathoscreen Test Kit.
Multiple samples (1-10 mL) of the same water to be tested are added to a culture media in sterile tubes and incubated at a particular temperature for a fixed time (usually 24 hours). By counting the number of tubes showing a positive result and comparing with a standard table, a statistical estimate of the most probable number of bacteria can be made. The results are reported as MPN per 100 mL.
2 min
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