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RECORD NUMBER: 70 OF 415

OLS Field Name OLS Field Data
Main Title Automatic Determination of Sulfates by an Improved Nephelometric Method. Application to the Determination of SO2 in the Ambient Air and of Sulfates in Rainwater (Dosage Automatique des Sulfates par un Methode Nephelometrique Amelioree. Application au Dosage du SO2 dans l'Air Ambiant et des Sulfates dans les Eaux de Pluie).
Author Verduyn, Geert ; Derouane., Alain ;
CORP Author Environmental Protection Agency, Research Triangle Park, N.C. Translation Services Section.
Year Published 1974
Report Number EPA-TR-75-89;
Stock Number PB-252 743-T
Additional Subjects Chemical analysis ; Sulfur dioxide ; Sulfates ; Water analysis ; Nephelometers ; Water pollution ; Air pollution ; Laboratory equipment ; Design criteria ; Translations ; France ; Gas analysis ; Rain ; Technicon auto analyzers ; Water pollution detection ; Air pollution detection
Holdings
Library Call Number Additional Info Location Last
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Status
NTIS  PB-252 743-T 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 17p
Abstract An automatic nephelometric method for the determination of low concentrations of sulfate is described. It permits the determination of concentrations as low as 0.1 micro gram/cu cm. The sulfate ions are precipitated by means of barium perchlorate. Fifty samples can be analyzed per hour. This method was developed for the determination of sulfur dioxide in air after absorption in diluted hydrogen peroxide. It is also applicable to the determination of sulfate amounts in rainwater. The equipment used is the Technicon Auto Analyzer connected with a two-monochromator spectrofluorimeter. This can be used in sampling for air and water pollution.
Supplementary Notes Trans. of Atmospheric Environment (U.S.) v8 p707-715 1974.
PUB Date Free Form 1974
Category Codes 14B; 13B; 99A; 68A
NTIS Prices PC A02/MF A01
Document Type NT
Cataloging Source NTIS/MT
Control Number 326618030
Origin NTIS
Type CAT