DOX system (DOX-60F/DOX-30F) rapidly evaluates the total number of microorganisms, coliforms and Escherichia coli

Change in the dissolved oxygen concentration



Start of the measurement

As oxygen is dissolved in the culture medium, small amount of electric current depending on the oxygen concentration will flow and be detected.



End of the measurement

If proliferated bacteria consume the dissolved oxygen, the amount of electric current sharply drops in proportion to the amount of oxygen consumed.  Proliferation of bacteria can be easily detected in this way.


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