Ralph W Richards

US Patent:

39778312, Aug 31, 1976

Filed:

Dec 30, 1974

Appl. No.:

5/537480

Inventors:

James C. Administrator of the National Aeronautics and Space Fletcher
Robert S. Rogowski - Hampton VA
Ralph R. Richards - Greenville IL
Edmund J. Conway - Newport News VA

International Classification:

G01N 2500
G01N 2762

US Classification:

23232E

Abstract:

A method for detecting and measuring trace amounts of pollutants of the group consisting of ozone, nitrogen dioxide and carbon monoxide in a gaseous environment wherein a sample organic solid material that will undergo a chemical reaction with the test pollutant is exposed to the test environment and thereafter, when heated in the temperature range of 100. degree. -200. degree. C. , undergoes chemiluminescence that is measured and recorded as a function of concentration of the test pollutant and wherein the chemiluminescence of the solid organic material is specific to the pollutant being tested.