Lancuage: Enclish Taurnel Announcetent: EDBELD8 Scucfile: te ‘Technica! Infarteticn Carter). oo cf: ‘Ashed sample of the mitcle tissue of s:ipjack. which »ere Shuntotsu-Maru on June 19th near Bitini Atell was used for ths e rt. st sudy. Ion exchanger methced, using Dowex 50, was appliec te eperate redicactive elements with 0.2 HC1, 0.5% exalic acid and 5% annosium citrate (pH 3.52, 4.18, 4.6¢, 5.08, £.63 and 6.42) as the eluents. Eluticen curve of the athed muscle is shown in Figure 1. App veciable amounts ef cationic radicactive elements were senarated by 0.5% coxalic and by arnmoaniun citrate at the cH of 6.18 and alsa anionic radicactive elements were obtained by O.@€N HCl. As the fraction, which can be withdrawn by arneniun citrete 25 pH 4.13, was proved the mast active; further analysis was undertaken acceding tc the echeme cited in Figures 2@ and 3. In eddizvien ta theze chemical separation, abserpticn rurve of this specimen with tin foil was e amined simultaneously, (Figure 3) and thus the cadioacltiva (sup 58/orn was caonfirvec tc be preseit in the fish muscle. rithrven it was d.fficuit toa detect radicactivity in rave-earth ard sibaline-sartn gravps in the mescrie tissue, attenats are belong mede ror More O°eciss examinaticr. Rerzed - F9 Pek IG Fale 104: £ti223 SDE-w: 92542 Vitie: Sadraactive maetersal ar the radiclee@icall, rentaminacted fishes crucat e faci isha set om Mery, 7. SIerec ‘Tepan voany Dete: re Cod.ar 2 Tetian Center’. PRI Gterract: ai “he vcadicectivity af es.eral zerples of Ceoryphaene dirayrue cRugms in the southern Facitic in Wav, i954, after the atomir erplosio at = Tousd, in decressine orcer, in spleen, kidney, liver, pyloric Teca, neart, gill, intestine, gastric wall, ovary, testis, gastric content, red muscle, skin, vertezrae, and miscie. The red muscle cf Neathunrnus “acreove-us showed 34.8 caunts/’min./9,20 g. activity aon dry basis, the activity wes decreased to 27.5 by scaeking eS g. muscle in 25 cc. water, ard to 14.1 By seaking in 0.5% Na etrhylenediaminetetraacetate scalution. The redicactive substances in these fish tissues were found, upon analysis, ta beleng te the ITI] oroup, particularly ta ITI-3 qroup. Examination af synchrascepe patterns sy scintillation ccunter indicated the presence of fSup Sb/29 emeng the radioactive substances. /sugp FO/Sr was suggested to be presert in very erall ameunt. DrArro File i154: siige2 ERE-f3:061547 SAME LEAN Jude Oo U