Published 1959 | Version v1
Report Open

Determination of natural thorium in urines

Creators

  • 1. Commissariat a l'Energie Atomique, Saclay (France).Centre d'Etudes Nucleaires

Description

A procedure for the quantitative analysis of thorium in urine is described. After precipitation with ammonium hydroxide, dissolution of the precipitate, extraction at pH 4-4.2 with cupferron in chloroformic solution and mineralization, a colorimetric determination of thorium with thorin is performed. It is thus possible to detect about 2 γ of thorium in the sample. (author)

Availability note (English)

Available from INIS in electronic form

Abstract (French)

Cet article decrit une technique de dosage du thorium dans l'urine. Apres precipitation par l'ammoniaque, remise en solution, extraction a pH 4-4,2 par le cupferron en solution chloroformique et mineralisation, le thorium est dose par colorimetrie avec le thorin. Cette methode permet de deceler environ 2 γ de thorium dans l'echantillon. (auteur)

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Additional details

Additional titles

Original title (French)
Dosage du thorium dans les urines

Publishing Information

Imprint Pagination
9 p.
Report number
CEA-R--1227

INIS

Country of Publication
France
Country of Input or Organization
France
INIS RN
38094224
Subject category
S63: RADIATION, THERMAL, AND OTHER ENVIRONMENTAL POLLUTANT EFFECTS ON LIVING ORGANISMS AND BIOLOGICAL MATERIALS; S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
Descriptors DEI
ACCURACY; AMMONIUM HYDROXIDES; CUPFERRON; PH VALUE; PRECIPITATION; QUANTITATIVE CHEMICAL ANALYSIS; SENSITIVITY; SPECTROPHOTOMETRY; THORIN; THORIUM 228; THORIUM 232; URINE
Descriptors DEC
ACTINIDE NUCLEI; ALPHA DECAY RADIOISOTOPES; AMINES; AMMONIUM COMPOUNDS; AROMATICS; ARSENIC COMPOUNDS; BIOLOGICAL MATERIALS; BIOLOGICAL WASTES; BODY FLUIDS; CHEMICAL ANALYSIS; DIAZO COMPOUNDS; EVEN-EVEN NUCLEI; HEAVY NUCLEI; HYDROGEN COMPOUNDS; HYDROXIDES; HYDROXY COMPOUNDS; ISOTOPES; MATERIALS; NAPHTHOLS; NUCLEI; ORGANIC ACIDS; ORGANIC COMPOUNDS; ORGANIC NITROGEN COMPOUNDS; ORGANIC SULFUR COMPOUNDS; OXYGEN COMPOUNDS; PHENOLS; RADIOISOTOPES; REAGENTS; SEPARATION PROCESSES; SPONTANEOUS FISSION RADIOISOTOPES; SULFONIC ACIDS; THORIUM ISOTOPES; WASTES; YEARS LIVING RADIOISOTOPES

Optional Information

Notes
4 refs.