Determination of Trace Elements in Soils and Clay Minerals by Resonance Neutron Activation Analysis1
- R. P. Murrmann,
- R. W. Winters and
- T. G. Martin2
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.Please view the pdf by using the Full Text (PDF) link under 'View' to the left.
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