Radioactivation Method for the Determination of Uranium in Human Teeth

A simple and rapid method for activation analysis of uranium in human teeth was proposed. The nuclear reaction of 235U (n, f) 140Ba was used and the activity of 140La in equilibrium with 140Ba was measured. The barium fraction was separated in the form of barium chloride from the hydrochloric acid s...

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Published inRADIOISOTOPES Vol. 16; no. 6; pp. 247 - 250
Main Authors IKEDA, Nagao, HASEBE, Nobuyuki, KIMURA, Kan, ABE, Tomio, SUZUKI, Hiromi, SUZUKI, Masaru, SASAKI, Emiko
Format Journal Article
LanguageJapanese
Published Japan Radioisotope Association 1967
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ISSN0033-8303
1884-4111
DOI10.3769/radioisotopes.16.6_247

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Summary:A simple and rapid method for activation analysis of uranium in human teeth was proposed. The nuclear reaction of 235U (n, f) 140Ba was used and the activity of 140La in equilibrium with 140Ba was measured. The barium fraction was separated in the form of barium chloride from the hydrochloric acid solution of the irradiated teeth sample, and then purified by the use of cation exchange resins. The radiochemical purity of the final lanthanum fraction was high enough. Several teeth samples were analysed, giving the uranium contents of 24-44 ppb.
ISSN:0033-8303
1884-4111
DOI:10.3769/radioisotopes.16.6_247