著者
木羽 敏泰 大橋 茂 柴田 村治 水辺 忠昭
出版者
公益社団法人 日本分析化学会
雑誌
分析化学 (ISSN:05251931)
巻号頁・発行日
vol.3, no.4, pp.361-363, 1954-08-15 (Released:2009-04-28)
参考文献数
4
被引用文献数
1 2

Tunney fishes on board the No.5 Fukuryu Maru were Shipped from Yaizu to Kanazawa in March 1954. The radioactive substance adhered on the surface of tunney was collected and investigated with the following result.The strongest radioactivity was found in portion collected from epidermis and it showed 205 c/m per cm2(estimated on March 18 by use of Nuclear Type D-34, G.M.Counter Tube);larger part of radioactive substances were found to be adhered on scales and they were in the form of difficultly:soluble in water. Only the surface of scales was treated with hydrochloric acid in order to dissolve larger part of adioactive substance, the solution was concentrated and the contents were detected by paper chromatography.Four solvents were consisted of (A) EtOH: BuOH:10%aq.soln.of NH4SCN (5:5:2);(B)BuOH satd.with 3 NHCl;(C)Me2CO:BuOH: concd.HCl(5:2:1), and(D)MeOH:BuOH(3:1).The result of estimation indicated the presence of Ba140, Sr89 or Sr90 and Te132, radioactive Zr (Zr95) and the other radioactive rare earths andU237 were also considered to be present.
著者
松本 健 木羽 敏泰
出版者
公益社団法人 日本分析化学会
雑誌
分析化学 (ISSN:05251931)
巻号頁・発行日
vol.30, no.1, pp.12-16, 1981-01-05 (Released:2009-06-19)
参考文献数
17
被引用文献数
1 1

100ml分液漏斗に1M塩化アンモニウム-炭酸アンモニウム-アンモニア水溶液(pH10)50mlを入れ,窒素を通じ脱酸素してから,金属銅試料を加え振り混ぜると,酸化銅(I)と酸化銅(II)はアンミン錯イオンとなって溶解し,金属は溶けないで残る.水溶液について銅の量を原子吸光法で定量すれば,酸化銅(I)と酸化銅(II)の合量が求められる.一方,水溶液について窒素ふん囲気の下でバソクプロイン-クロロホルム抽出した後,銅を比色定量して酸化銅(I)の量を求める.酸化銅(II)は酸化銅(I)と酸化銅(II)の合量から酸化銅(1)を差し引いて算出した.本法は精度が高く,金属銅表面の酸化銅(I)と酸化銅(II)とを簡単迅速に分別定量できる.