A fluorometric method for ammonia analysis in ambient air.
Agarwal-DR; Chandra-MJ; Reynolds-SJ; Groves-WA
American Industrial Hygiene Conference and Exposition, June 1-6, 2002, San Diego, California. Fairfax, VA: American Industrial Hygiene Association, 2002 Jun; :505
Although existing sampling and analytical methods for ammonia may be adequate for evaluating exposure relative to the OSHA-PEL (50 ppm TWA), many projects involving the short-term measurement of ppb concentrations require more sensitive methods. This project focuses on the modification of a fluorometric method previously developed for analysis of ammonium in marine and freshwater samples to enable measurement of low concentrations of ammonia in ambient air. The modified approach combines the sorbent-tube collection techniques of current methods for ammonia sampling with analysis using a digital filter fluorometer.
Ammonium-compounds; Sampling; Sampling-methods; Exposure-levels; Air-samples; Air-sampling; Personal-protective-equipment; Analytical-methods; Analytical-chemistry
American Industrial Hygiene Conference and Exposition, June 1-6, 2002, San Diego, California
Pennsylvania State University, University Park, Pennsylvania