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Determination of the sanguine iodine content by activation analysis (1962); Determination de l'iode sanguin par analyse d'activation (1962)

Abstract

Two methods of measuring the iodine content of the blood by activation analysis after 30 min irradiation in a flux of 6.10{sup 12} n/cm{sup 2}.s are described. One method includes a chemical separation of iodine before irradiation. The radioactivity of this specimen is determined on the basis of the amplitude of the iodine 128 photoelectric peak measured by {gamma}-spectrometry. The sensitivity of this method is about 10{sup -8} g. The other includes chemical separation after irradiation, and radioactivity is subsequently measured with a Geiger-Muller counter. The sensitivity of this second method is about 10{sup -10} g, sufficient for determination of the plasmatic mineral content. The advantages of activation analysis over the conventional method based on colorimetric measurement of the catalytic action of iodine in the oxidation of arsenious anhydride with ceric sulphate are discussed. Initial results obtained with this new form of analysis are detailed as are also the possibilities of measuring plasmatic proteic iodine by scintillation spectrometry without prior chemical separation. (authors) [French] Deux methodes de dosage de l'iode sanguin par analyse d'activation apres irradiation de 30 minutes a 6.10{sup 12} n/cm{sup 2} s sont decrites. L'une comprend une separation chimique de l'iode avant l'irradiation et la mesure de  More>>
Authors:
Kellershohn, C; Comar, D; Le Poec, C [1] 
  1. Commissariat a l'Energie Atomique, Saclay (France). Centre d'Etudes Nucleaires
Publication Date:
Jul 01, 1962
Product Type:
Technical Report
Report Number:
CEA-R-2124
Resource Relation:
Other Information: 19 refs
Subject:
60 APPLIED LIFE SCIENCES; BETA SPECTROSCOPY; BLOOD; COMPARATIVE EVALUATIONS; GAMMA SPECTROSCOPY; IODINE 128; NEUTRON ACTIVATION ANALYSIS; ORGANIC IODINE COMPOUNDS; RADIOMETRIC ANALYSIS; SENSITIVITY; SOLVENT EXTRACTION
OSTI ID:
20740243
Research Organizations:
CEA Saclay, 91 - Gif-sur-Yvette (France)
Country of Origin:
France
Language:
French
Other Identifying Numbers:
TRN: FR06R2124050059
Availability:
Available from INIS in electronic form
Submitting Site:
FRN
Size:
20 pages
Announcement Date:
Jun 16, 2006

Citation Formats

Kellershohn, C, Comar, D, and Le Poec, C. Determination of the sanguine iodine content by activation analysis (1962); Determination de l'iode sanguin par analyse d'activation (1962). France: N. p., 1962. Web.
Kellershohn, C, Comar, D, & Le Poec, C. Determination of the sanguine iodine content by activation analysis (1962); Determination de l'iode sanguin par analyse d'activation (1962). France.
Kellershohn, C, Comar, D, and Le Poec, C. 1962. "Determination of the sanguine iodine content by activation analysis (1962); Determination de l'iode sanguin par analyse d'activation (1962)." France.
@misc{etde_20740243,
title = {Determination of the sanguine iodine content by activation analysis (1962); Determination de l'iode sanguin par analyse d'activation (1962)}
author = {Kellershohn, C, Comar, D, and Le Poec, C}
abstractNote = {Two methods of measuring the iodine content of the blood by activation analysis after 30 min irradiation in a flux of 6.10{sup 12} n/cm{sup 2}.s are described. One method includes a chemical separation of iodine before irradiation. The radioactivity of this specimen is determined on the basis of the amplitude of the iodine 128 photoelectric peak measured by {gamma}-spectrometry. The sensitivity of this method is about 10{sup -8} g. The other includes chemical separation after irradiation, and radioactivity is subsequently measured with a Geiger-Muller counter. The sensitivity of this second method is about 10{sup -10} g, sufficient for determination of the plasmatic mineral content. The advantages of activation analysis over the conventional method based on colorimetric measurement of the catalytic action of iodine in the oxidation of arsenious anhydride with ceric sulphate are discussed. Initial results obtained with this new form of analysis are detailed as are also the possibilities of measuring plasmatic proteic iodine by scintillation spectrometry without prior chemical separation. (authors) [French] Deux methodes de dosage de l'iode sanguin par analyse d'activation apres irradiation de 30 minutes a 6.10{sup 12} n/cm{sup 2} s sont decrites. L'une comprend une separation chimique de l'iode avant l'irradiation et la mesure de la radioactivite est effectuee a partir de l'amplitude du pic photo-electrique de l'iode 128 obtenu par spectrometrie-{gamma}. Sa sensibilite est de l'ordre de 10{sup -8} g. L'autre comprend une separation chimique de l'iode apres l'irradiation et la radioactivite de l'iode-128 est mesuree par comptage-{beta} avec un compteur Geiger. Sa sensibilite est de l'ordre de 10{sup -10} g, permettant d'envisager le dosage de l'iode mineral plasmatique. Les avantages de l'analyse d'activation sur la methode classique, basee sur la mesure colorimetrique de l'action catalytique de l'iode dans l'oxydation de l'anhydride arsenieux par le sulfate cerique, sont discutes. Des resultats preliminaires sont donnes sur la possibilite eventuelle de doser l'iode proteique plasmatique par spectrometrie de scintillation sans separation chimique prealable. (auteurs)}
place = {France}
year = {1962}
month = {Jul}
}