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  • NEUTRON ACTIVATION ANALYSIS OF BIOLOGICAL SAMPLES - A SYSTEMATIC STUDY ON THE LOSS OF ELEMENTS DURING PRECONCENTRATION STEPS BEFORE IRRADIATION

Abstract

Analytical problems accompany the analysis of very low levels of metals in biological samples by neutron activation analysis. This needs, in many cases, operation of preconcentration before the irradiation of the samples. A systematic study of the loss of trace elements during freeze-drying, wet ashing in teflon bomb, evaporation at 60 degrees C, dry ashing and preconcentration by Chelex 100 resin was performed. A chemical separation scheme by Chelex 100 resin for short-lived isotopes was minutely described.

Additional information

Authors: DESREUX J R, JRC ISPRA ESTAB. (ITALY);LONCIN M F, JRC ISPRA ESTAB. (ITALY);SPIRLET M R, JRC ISPRA ESTAB. (ITALY);REBIZANT J. PIETRA R, JRC ISPRA ESTAB. (ITALY);UBERTALLI L, JRC ISPRA ESTAB. (ITALY);MANAKTALA P, JRC ISPRA ESTAB. (ITALY);SABBIONI E JRC ISPRA ESTAB. (ITALY), JRC ISPRA ESTAB. (ITALY)
Bibliographic Reference: EUR 9211 EN (1984) MF, 31 P., BFR 120, BLOW-UP COPY BFR 155, EUROFFICE, LUXEMBOURG, POB 1003
Availability: Can be ordered online
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