6533b832fe1ef96bd129aba5
RESEARCH PRODUCT
Determination of phosphorus by instrumental neutron activation and bremsstrahlung measurement in bone samples
N. PorteE. MauerhoferH. O. Denschlagsubject
Accuracy and precisionMaterials scienceHealth Toxicology and MutagenesisPhosphorusRadiochemistryPublic Health Environmental and Occupational HealthAnalytical chemistryBremsstrahlungchemistry.chemical_elementPollutionNeutron temperatureBone mealAnalytical ChemistryNuclear Energy and EngineeringchemistryNon destructiveRadiology Nuclear Medicine and imagingIrradiationSpectroscopyNeutron activationdescription
A non destructive method based on the31P(n,γ)32P reaction for the assay of phosphorus in bone samples is described. This method involves a thermal neutron irradiation of 2 minutes in a reactor followed by the measurement of the bremsstrahlung produced by the β− of32P in a Ge-detector surrounded by an anti-Compton shield. Accuracy and precision were tested by analysing the certified NIST 1486 Bone Meal reference material and tri-calcium phosphate (Ca3(PO4)2) samples. The value obtained for the reference material was in good agreement with the certified value and with relative standard deviation of 4.1% the precision was acceptable. The value obtained for Ca3(PO4)2 shows a deviation of −6% from the expected value, reflecting the effect of the sample density in bremsstrahlung measurement.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1997-06-01 | Journal of Radioanalytical and Nuclear Chemistry |