Plutonium determination in excreta, a method fitted for mass incidents
- 1. Centre de Recherches du Service de Sante des Armees, 38 - La Tronche (France)
Description
With respect to different situations, a versatile method of plutonium determination in feces or urines is described. After a previous treatment involving mineralization and subsequent acidic dissolution, organic solvent extraction of Pu IV complexes with (di-2-ethylhexyl) phosphoric acid (Di-2-EHPA) is used. Aqueous stripping of Pu III from the organic phase can be performed using tertiobutylhydroquinone (TBHQ) as reducing reagent. At this stage, enough purified samples may be easily obtained for counting purposes. Depending on circumstances (radioactive contamination of large groups, periodic personal monitoring, rapid or large excretion rate period...) sample purification can be stopped at various stages that will decide the ad-hoc counting mode (liquid scintillation or proportional counting). Owing to its feasibility, this technique can even be performed by poorly trained technicians
Abstract (French)
Nous proposons une methode de mesure du plutonium dans les feces et les urines adaptable a diverses situations. Apres mineralisation et reprise en milieu acide des echantillons, on realise une extraction par solvant organique des complexes du Pu IV avec l'acide di-2-(ethylhexyl) phosphorique (Di-2-EHPA). Une extraction en retour de Pu III en phase aqueuse peut etre ensuite realisee en utilisant la tertiobutylhydroquinone (TBHQ) comme agent reducteur. A ce niveau, il est facile d'obtenir des sources suffisamment purifiees pour comptage. Selon les circonstances (radiocontamination de masse, surveillance periodique de personnels, phase d'excretion lente ou rapide...) la purification de l'echantillon peut s'arreter a des etapes plus ou moins precoces, qui determineront le mode de comptage (scintillation liquide ou compteur proportionnel). Du fait de sa facilite de mise en oeuvre, cette technique peut etre pratiquee par des techniciens peu entrainesAdditional details
Additional titles
- Original title (French)
- Determination du plutonium dans des excretas, une methode adaptable aux incidents de masse
Publishing Information
- Journal Title
- Radioprotection
- Journal Volume
- 24
- Journal Issue
- 3
- Series
- Radioprotection.
- Journal Page Range
- 203-213
- ISSN
- 0033-8451
- CODEN
- RAPRB
INIS
- Country of Publication
- France
- Country of Input or Organization
- France
- INIS RN
- 21042249
- Subject category
- S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
- Descriptors DEI
- CHELATING AGENTS; EXCRETION; FECES; PERSONNEL MONITORING; PHOSPHORIC ACID; PLUTONIUM; PLUTONIUM ISOTOPES; QUINONES; REDUCING AGENTS; SCINTILLATION COUNTING; SOLVENT EXTRACTION; URINE
- Descriptors DEC
- ACTINIDES; AROMATICS; BIOLOGICAL MATERIALS; BIOLOGICAL WASTES; BODY FLUIDS; CLEARANCE; COUNTING TECHNIQUES; ELEMENTS; HYDROGEN COMPOUNDS; INORGANIC ACIDS; INORGANIC COMPOUNDS; MATERIALS; METALS; MONITORING; ORGANIC COMPOUNDS; ORGANIC OXYGEN COMPOUNDS; OXYGEN COMPOUNDS; PHOSPHORUS COMPOUNDS; RADIATION MONITORING; SEPARATION PROCESSES; TRANSURANIUM ELEMENTS; WASTES