Multi-element analysis of biological samples after intense neutron irradiation an fast chemical separation |
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Authors: | A. Gaudry B. Maziere D. Comar D. Nau |
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Affiliation: | (1) CEA Département de Biologie, Service Hospitalier Frédéric Joliot, Laboratoire Pierre Süe, CEN Saclay, B. P. No. 2, 91190 Gif-sur-Yvette, (France) |
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Abstract: | For the simultaneous determination of many elements in small biological samples, a multi-element analysis has been developed using neutron activation. After a 24-hr irradiation in a neutron flux of 2.5·1014 n·cm−2·sec−1 and after immediate chemical separation without cooling, it was possible to analyse 24 elements in bovine liver (NBS-SRM 1577). The separation apparatus, set up in a shielded cell can work four samples simultaneously, and its operation is fast enough to allow the detection of radioisotopes with a half-life of about 2 hrs (165Dy,57mSr,56Mn). Amounts lower than 10−3 μg of Dy, Eu, Pr, Sm and Yb were determined. |
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