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Volume :15 Issue : 2 1988
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Determination of ammonia and ammonium ion in air and in artesian wells in Arbil Governorate using thermal chemiluminescence by molecular emission cavity analysis (MECA)
Auther : ISSAM M. A. SHAKIR*, SAID Y. ATTO* AND
*Department of Chemistry, College of Science, University of Salahaddin, Arbil, Iraq, and
Environmenta1 Improvement and Protection Directorate, Arbil, Iraq
ABSTRACT
Thermal chemiluminescence generated in MECA was used as a sensitive tool for detection of ammonia gas generated directly from water samples by treating with alkali (KOH) or absorption of ammonia gas from air into an acid solution (3 M HC1) then liberation of ammonia gas from the ammonium ion formed. Ammonia gas was not detected in all artesian wells, while NH+4 ranged from 27 /mg NH +4 /I in the Tayrawa pipeline to 238 mg NH+4/1 in the maternity hospital. Rain water for Diayna area had 34 mg NH+4/1 while water from snow falls at Sarirash resort contained 56mg NH+4/1. Ammonia in air ranged from 5.70mg NH3/m3 for Sayed Takan area to 25.23 mg NH3/m3 for Einkawa area.