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Determination of Trace Elements in Soils and Clay Minerals by Resonance Neutron Activation Analysis
Author(s) -
Murrmann R. P.,
Winters R. W.,
Martin T. G.
Publication year - 1971
Publication title -
soil science society of america journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.836
H-Index - 168
eISSN - 1435-0661
pISSN - 0361-5995
DOI - 10.2136/sssaj1971.03615995003500040045x
Subject(s) - nuclide , neutron activation analysis , halloysite , illite , cadmium , soil water , neutron activation , radiochemistry , bentonite , materials science , clay minerals , uranium , analytical chemistry (journal) , chemistry , neutron , mineralogy , geology , metallurgy , environmental chemistry , nuclear physics , physics , paleontology , soil science , composite material
Bentonites 23 and 25, Umiat bentonite, Koalinite 7, Halloysite 29, Illite 35, and Fairbanks, Barrow, and Suffield silts were irradiated with resonance neutrons by exposure of cadmium shielded samples in a reactor for 40 hours in order to identify the elements having long half‐life nuclides which could be quantitatively determined using nondestructive neutron activation analysis. By examination of the gamma‐ray spectra obtained using a high resolution Ge(Li) detector, it was possible to identify Fe, Ti, Zn, Ni, Co, Cr, Sr, Ba, Cs, La, Eu, Tb, Hf, Ta, Th, and U in most of the samples. Although quantitative results were obtained only for Fe, Ti, Zn, Ni, Co, and Cr, this method appears suitable for nondestructive quantitative analysis of all the elements identified.