Record Display for the EPA National Library Catalog
RECORD NUMBER: 448 OF 2620
|OLS Field Name||OLS Field Data|
|Main Title||Chemical transformations in acid rain : volume I, new methodologies for sampling and analysis of gas phase peroxide /|
|Author||Tanner, R. L.|
|CORP Author||Brookhaven National Lab., Upton, NY.;Environmental Protection Agency, Research Triangle Park, NC. Atmospheric Sciences Research Lab.|
|Publisher||U.S. Environmental Protection Agency, Atmospheric Sciences Research Laboratory,|
|Subjects||Acid rain--United States. ; Peroxides--Analysis.|
|Additional Subjects||Hydrogen peroxide ; Peroxide organic compounds ; Gas analysis ; Ozone ; Chemical analysis ; Experimental design ; Air pollution ; Laboratory equipment ; Volumetric analysis ; Decomposition ; Air pollution sampling ; Air pollution detection ; Acid rain ; Atmospheric chemistry|
|Collation||33 pages ; 28 cm|
New methodologies for the sampling and analysis of gas-phase peroxides (H2O2 and organic peroxides) using (a) diffusion denuder tubes and (b) gas-to-liquid transfer with prior removal of ozone have been investigated. The purpose was to develop an interference-free method for determining H2O2 in ambient air. A denuder approach using ferrous (1,10-phenantholine)-coated tubes was unsuccessful; although H2O2 was removed in the approach, the capacity was low and ozone was also removed, possibly through surface decomposition to H2O2 and its radical precursors. Gaseous peroxide in compressed air streams could be collected in impingers without artifact formation from surface ozone decomposition if O3 was first removed by gasphase titration with nitric oxide.
Caption title. "Apr. 1985." "EPA/600/3-85/016." Microfiche.