Chemistry: analytical and immunological testing – Nitrogen containing – Amine and quaternary ammonium
Patent
1997-07-09
1999-03-16
Soderquist, Arlen
Chemistry: analytical and immunological testing
Nitrogen containing
Amine and quaternary ammonium
422 8201, 422 8202, 436106, 436108, 436111, 436150, 436163, 436175, 436178, G01N 3300, G01N 2700
Patent
active
058829377
ABSTRACT:
Ammonia monitor and method of use are disclosed. A continuous, real-time determination of the concentration of ammonia in an aqueous process stream is possible over a wide dynamic range of concentrations. No reagents are required because pH is controlled by an in-line solid-phase base. Ammonia is selectively transported across a membrane from the process stream to an analytical stream under pH control. The specific electrical conductance of the analytical stream is measured and used to determine the concentration of ammonia.
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Akse James R.
Atwater James E.
Sauer Richard L.
Thompson John O.
Barr Hardie R.
Soderquist Arlen
The United States of America as represented by the Administrator
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