The sample solution in ST-25 is discarded by the remaining 5 ml, and then 1.65 ml of the concentrated liquid chromogenic culture medium (ST-SSP) is completely injected to ST-25 for culture.
ST-SSP can simultaneously detect coliforms and Escherichia coli for qualitative identification.
|Coliforms and Escherichia coli for qualitative identification
Add SSP concentrated medium
Primary color - negative
Blue – coliforms positive
Fluorescence -- Escherichia coli positive