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Determination of 210Pb, 210Po, 232Th, 230Th, 228Th, 238U, 235U and 234U with alpha ray spectrometry in manganese nodule standard rock sample JMn-1
Ist Teil von
BUNSEKI KAGAKU, 2003, Vol.52(10), pp.951-954
Ort / Verlag
The Japan Society for Analytical Chemistry
Erscheinungsjahr
2003
Link zum Volltext
Quelle
EZB Free E-Journals
Beschreibungen/Notizen
210Pb, 210Po, 232Th, 230Th, 228Th, 238U, 235U and 234U in Geological Survey of Japan manganese nodule standard rock sample JMn-1 were determined by radioactive isotope dilution/alpha ray spectrometry. Extraction chromatography, anion exchange chromatography and solvent extraction were applied to the analysis. The analytical results of Th and U in JMn-1 were in agreement with the literature values determined by ICP-MS (inductively coupled plasma mass spectrometry) or INAA (instrumental neutron activation analysis). It was found that the concentration of 210Pb in JMn-1 was higher than that in other certified reference materials for environmental radioactivity. JMn-1 proved to be useful for quality control sample in the analysis of environmental radioactivity.