Determination of ten trace elements in meteorites and lunar materials by radiochemical neutron activation analysis |
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| Authors: | L.L. Sundberg W.V. Boynton |
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| Affiliation: | Department of Chemistry, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, CA 90024 U.S.A. |
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| Abstract: | A procedure is reported for the determination of Ni, Ge, Ru, Au, Ir, Zn, Ga, Cd, In and U in meteorites and lunar materials. The precision in multiple determinations at the 95% confidence level is less than 10% except for gold (15%). Ruthenium and uranium are determined by counting 97Ru and 103Ru x-rays; the chemical yield is determined from 106Ru added before sample dissolution. The activity of 116mIn is determined with improved sensitivity from integral counts in the region 1.5–3.0 MeV on a NaI(TI) detector. |
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| Keywords: | Present address: General Electric Co. San Jose CA 95125 U.S.A. |
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