Chemistry: electrical and wave energy – Processes and products
Patent
1979-10-19
1981-07-14
Tung, T.
Chemistry: electrical and wave energy
Processes and products
204195R, 23230R, G01N 2746
Patent
active
042785073
ABSTRACT:
A method for measuring the free chlorine content in a solution consists, in first portions of the solution, in successively adding a chemical compound (e.g. a nitrite), which selectively transforms the free chlorine into chloride, then an iodide, in introducing the said first portions in an amperometric cell for measuring the combined chlorine content and, in second portions of the solution, in adding only the iodide and subsequently introducing the second portions into an amperometric cell for measuring the total chlorine content and finally in calculating the difference between the total chlorine and the combined chlorine contents.
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Lambert et al., "Analytical Chemistry", vol. 41, No. 6, May 1969, pp. 838-840.
Zitomer et al., "Analytical Chemistry", vol. 34, No. 13, Dec. 1962, pp. 1738-1740.
Derreumaux Antoine
Saunier Bernard
Drucker William A.
Tung T.
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