Radio-chemical analysis of the livers of fishes caught in the Pacific Ocean in 1958

Abstract

The ashes of the livers of fishes caught in the Pacific Ocean in 1958 were analyzed for their radio contamination by the ion exchange and precipitation methods. As a result, some radio nuclides, 59Fe, 65Zn, 115mCd and 90Sr+90Y were identified with the measurements of their half-lives, absorptions and energies. The maximum concentrations of the elements determined were 59Fe of 4.0×10-3µc, 65Zn of 4.0×10-1 µc, 115mCd of 6.3×l0-3µc, and 90Sr + 90Y of 2.5×l0-5µc. © 1960, The Japan Society for Analytical Chemistry. All rights reserved.