ハイドロオキシフルオランおよび, その誘導体の有機試薬としての利用研究(第11報) : 3,4,5,6-Tetrachloro-3′, 4′, 5′, 6′-tetrahydroxyfluoranとDiphenylguanidineを用いるSn(IV)の抽出分析
1970 年 90 巻 6 号 p. 778-781
詳細
1970 年 90 巻 6 号 p. 778-781
Examinations were made on the determination of Sn (IV) by isoamyl alcohol extraction using 3, 4, 5, 6-tetrachloro-3', 4', 5', 6'-tetrahydroxyfluoran and 1, 3-diphenylguanidine. It was thereby found that extractive determination of Sn (IV) is possible in the range of 0-90.0 μg/10 ml of Sn (IV) by measuring the optical density of the Sn (IV) complex formed with the above two reagents, with the reagent blank as the control, at 540 mμ. Presence of Fe (III), Bi (III), Sb (III), Zr (IV), and Al (III) interferes in the extractive determination of Sn (IV) and these ions should be removed beforehand.
