Record Display for the EPA National Library Catalog

RECORD NUMBER: 5 OF 7

OLS Field Name OLS Field Data
Main Title Development and Evaluation of an Analytical Method for the Determination of Total Atmospheric Mercury.
Author Chas, D. L. ; Sgont, D. L. ; Blosse, E. R. ; Henr, W. M. ;
CORP Author Battelle Columbus Labs., Ohio.
Year Published 1972
Report Number EPA-EHSD-71-32; 1174;
Stock Number PB-210 822
Additional Subjects ( Mercury ; Gas detectors) ; ( Air pollution ; Mercury) ; Gas sampling ; gas analysis ; Pyrolysis ; Particles ; Errors ; Iodine halides ; Chlorides ; Mercury amalgams ; Silver alloys ; Air pollution detection ; Iodine chlorides
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
NTIS  PB-210 822 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 06/23/1988
Collation 73p
Abstract
Total mercury in ambient air can be collected in iodine monochloride, but the subsequent analysis is relatively complex and tedious, and contamination from reagents and containers is a problem. A silver wool collector, preceded by a catalytic pyrolysis furnace, gives good recovery of mercury and simplifies the analytical step. An instrumental method based on particle counting proved unreliable, but another instrument using the 253.7 nm Hg optical absorption line proved to be quite accurate for the determination of elemental mercury in air. (Author)