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.
申请公布号
US5882937(A)
申请公布日期
1999.03.16
申请号
US19970903279
申请日期
1997.07.09
申请人
THE UNITED STATES OF AMERICA AS REPRESENTED BY THE ADMINISTRATOR OF THE NATIONAL AERONAUTICS AND SPACE ADMINISTRATION
发明人
SAUER, RICHARD L.;AKSE, JAMES R.;THOMPSON, JOHN O.;ATWATER, JAMES E.