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Zuba I, Polkowska-Motrenko H. Ratio primary reference measurement procedure (RPRMP) for the certification of chromium content in biological reference materials. RADIOCHIM ACTA 2018. [DOI: 10.1515/ract-2018-2993] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Primary reference measurement procedure for Cr determination in biological samples by radiochemical neutron activation analysis (RNAA) has been elaborated. The procedure is based on quantitative and selective separation of chromium from neutron irradiated sample by column chromatography using MnO2-Resin and determination of 51Cr by γ-ray spectrometry. Quality components have been incorporated into the RNAA method which makes it possible to meet the requirements of the definition of ratio primary reference measurement procedure. The usefulness of the elaborated procedure to assign the certified values for Cr in new certified reference material (CRMs) based on animal tissues is demonstrated. The tentative certified values for Cr have been proposed for: MODAS M-4 Cormorant Tissue and M-5 Cod Tissue CRMs.
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Affiliation(s)
- Iga Zuba
- Institute of Nuclear Chemistry and Technology , Laboratory of Nuclear Analytical Methods, Dorodna 16 , 03-195 Warsaw , Poland
| | - Halina Polkowska-Motrenko
- Institute of Nuclear Chemistry and Technology , Laboratory of Nuclear Analytical Methods, Dorodna 16 , 03-195 Warsaw , Poland
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