Instrumental epithermal neutron activation analysis of solid geochemical samples

Rolf Rosenberg, M. Kaistila, Riitta Zilliacus

Research output: Contribution to journalArticleScientificpeer-review

Abstract

Geochemical samples have been irradiated for 25 h, let decay for 4 ... 6 days and measured for 0.5 h. The measurements were carried out with a gamma spectrometer equipped with a sample changer and an on-line microcomputer for computing the elemental concentrations. The concentrations for 27 elements have been determined: Na, Sc, Cr, Fe, Co, Ni, Zn, As, Se, Br, Rb, Mo, Ag, Sn, Sb, Cs, Ba, La, Sm, Eu, Lu, Hf, Ta, W, Au, Th and U. The precision of the analysis is typically +-7 %. The accuracy was investigated by analyzing USGS geochemical standards and it was found to be satisfactory. Using one gamma spectrometer, about 7000 samples can be analyzed per annum.
Original languageEnglish
Pages (from-to)419 - 428
Number of pages10
JournalJournal of Radioanalytical Chemistry
Volume71
Publication statusPublished - 1982
MoE publication typeA1 Journal article-refereed

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