Published: Jan 1958
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In the Beckman dissolved oxygen analyzer the conductivity of a flowing sample of water is measured. To this water nitric oxide is added and its conductivity again measured. If the sample contains no oxygen, the conductivity is the same in both measurements, because the nitric oxide does not form an ion with the water but is present simply as a dissolved gas. If the water contains oxygen, some of the nitric oxide is oxidized to form nitrite ion and the conductivity of the second cell becomes higher than that of the first:
Chemical Engineer, Niagara Mohawk Power Corp., Buffalo, N. Y.
Tucker, Ross C.
Laboratory Supervisor, Niagara Mohawk Power Corp., Oswego, N. Y.
Paper ID: STP48051S