@article{oai:u-ryukyu.repo.nii.ac.jp:02006967,
 author = {桂, 幸昭 and Katsura, Kosho},
 issue = {18},
 journal = {琉球大学理工学部紀要. 理学編, Bulletin of Science & Engineering Division, University of Ryukyus. Mathematics & natural sciences},
 month = {Jan},
 note = {Sodium benzoate reacts with uranyl ion in the presence of zephiramine (tetradecyl-demethyl-benzyl-ammonium chloride; Zeph+. C1-) to form ion association complex of whitish-yellow precipitate. The complex is extracted into chloroform and determined by the polarographic method in O. 5 M H_2 SO_4 as supporting electrolyte. 97.2 % of uranyltribenzoate-zephiramine complex is extracted at pH 4.0-6.0. Under the optimum condition, diffusion current at - 0.58 V (vs. S. C. E.) is proportional to uranyl ion concentration in the range of 10-^<-4>-10^<-3> M. The composition of the extracted species is assumed to be (Zeph+. UO_2 (C_6H_5COO)_3(H_2O)_3-) and more than 95.2 % of the complex compound is stripped by 0.5 M H_2 SO_4., 紀要論文},
 pages = {59--66},
 title = {ゼフィラミン塩抽出によるウランのポーラログラフ定量},
 year = {1975}
}