Record Display for the EPA National Library Catalog

RECORD NUMBER: 58 OF 69

Main Title Photometric Determination of Thorium in the Soil (Fotometricheskoe Opredelenie Toriya v Pochve).
Author Zhukov., B. I. ;
CORP Author Environmental Protection Agency, Research Triangle Park, N.C. Translation Services Section.
Year Published 1971
Report Number EPA-TR-76-72;
Stock Number PB-259 068-T
Additional Subjects Thorium ; Soil analysis ; Oxalic acid ; Separation ; Photometry ; Translations ; USSR ;
Holdings
Library Call Number Additional Info Location Last
Modified
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Status
NTIS  PB-259 068-T Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 8p
Abstract
A method is described for the photometric determination of thorium in soils. This involves decomposition of the sample by sintering with sodium peroxide, and precipitation on calcium oxalate. Sensitivity of the proposed method is 0.04 microg/ml. This permits determination of down to 1 x 10 to the -6th power gram of thorium per gram of soil. The analysis is performed without platinum vessels or hydrofluoric acid.