Determination of 34 elements in Chinese geochemical standard reference materials by instrumental neutron activation analysis |
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Authors: | Linshan Song T D Macmahon N I Ward |
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Institution: | (1) Institute of Geophysical and Geochemical Prospecting, Langfang, Hebei Province, The People's Republic of China;(2) Reactor Centre, Imperial College at Silwood Park, SL5 7PY Ascot, Berkshire, England;(3) Department of Chemistry, University of Surrey, GU2 5XH Guildford, Surrey, England |
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Abstract: | Thirty four elements (Al, As, Ba, Br, Ca, Ce, Co, Cr, Cs, Dy, Eu, Fe, Gd, Hf, Ho, K, La, Lu, Mg, Mn, Na, Nd, Rb, Sb, Sc, Sm, Ta, Tb, Th, Ti, U, V, W, Yb) were determined by instrumental neutron activation analysis in the second set of Chinese geochemical standard reference materials (sediments from GSD-9 to GSD-12, soils from GSS-1 to GSS-8, rocks from GSR-1 to GSR-6) using both thermal and epithermal irradiations. Irradiation schemes designed to utilise short, medium and long-lived nuclides were employed in order to analyse major, minor and trace elements with different half-lives. The gamma-ray spectra were measured by Ge(Li) and HP(Ge) detectors. Relevant nuclear data and possible interferences are listed, and analytical results are presented and discussed. |
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