Record Display for the EPA National Library Catalog


Main Title Towards a Standard Method for the Measurement of Organic Carbon in Sediments.
Author Lee, C. M. ; Macalady, D. L. ;
CORP Author Colorado School of Mines, Golden. Dept. of Chemistry and Geochemistry.;Robert S. Kerr Environmental Research Lab., Ada, OK.
Publisher c1989
Year Published 1989
Report Number EPA/600/J-89/101;
Stock Number PB90-117193
Additional Subjects Sediments ; Soil analysis ; Standards ; Chemical analysis ; Carbon ; Environmental surveys ; Water pollution ; Pesticides ; Oxidation ; Chromates ; Colorimetric analysis ; Volumetric analysis ; Reprints ; Organic materials ; Sediment-water interfaces ; Walkley Black technique ; Land pollution
Library Call Number Additional Info Location Last
NTIS  PB90-117193 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 9p
The precisions achieved by two different methods for analysis of organic carbon in soils and sediments were determined and compared. The first method is a rapid dichromate oxidation technique (Walkley-Black) that has long been a standard in soil chemistry. The second is an automated coulometric titration method for which commercial instrumentation is available. The latter method shows relative standard deviations that are six to twenty times smaller than the dichromate oxidation technique. Development of a standardized sediment with a low level of organic carbon is recommended in order to facilitate the evaluation of the precision and accuracy or organic carbon measurement techniques. (Copyright (c) 1989 Gordon and Breach.)