INAA of trace elements in biological materials using the SLOWPOKE-2 reactor in Jamaica

The biological standard reference materials Orchard Leaves SRM 1571 and Oys ter Tissue SRM 1566a was analysed by instrumental neutron activation analys is (MAA) at the International Centre for Environmental and Nuclear Sciences , Jamaica at (ICEN) and at the Instituto de Pesquisas Energeticas e Nuclear es (IPEN-CNEN/SP), Brazil. The comparison of the results with those obtaine d with the more powerful reactor are used to evaluate the possibilities of INAA for the analysis of biological samples at ICENS. The detection limits, the precision and accuracy of the results obtained in both laboratories ar e compared. The advantages and disadvantages of the different irradiation f acilities are discussed. Some results obtained for Jamaican biological samp les are also presented.