The Pu, U, and Am concentrations and Pu/Pu, U/U, and U/U atom ratios were measured in the hair and nail samples using a new method utilized TEVA, UTEVA, and DGA extraction chromatography and multi-collector ICP-MS. Samples were collected from individuals who donated their bodies to the United States Transuranium and Uranium Registries. The concentration of Pu ranged from 0.22 to 15.8 ng/kg. The Pu/Pu isotopic ratios ranged from 0.026 to 0.127 which is consistent with weapons-grade plutonium. Concentration of uranium fell between 1.84 μg/kg and 29.5 μg/kg and U/U ratios ranged from 4.8 × 10 to 7.6 × 10. Elevated U/U atom ratios were measured in two cases and ranged from 5.0 × 10 - 2.4 × 10 indicating exposure to spent or reprocessed uranium material. The concentration of Am was measured in four hair samples and ranged from 0.02 to 0.21 ng/kg.
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