钛-5-Br-SAF-CTAB光度法测定微量钛

钛-5-Br-SAF-CTAB光度法测定微量钛 SPECTROPHOTOMETRIC DETERMINATION OF MICROAMOUNTS TITANIUM WITH 5-Br-SAF-CTAB 李声(香奇) Li Shengyi Gao Dengyun Zhang Huashan Zhou Guohu 1 first-author 高登云 1 张华山 1 周国辉 1 武汉大学化学系 武汉大学化学系 Department of Chemsitry, Wuhan University Department of Chemsitry, Wuhan University 本文研究了5—溴—水杨基荧光酮（5—Br—SAF）在阳离子表面活性剂CTAB存在下,测定微量钛的显色反应。该体系的灵敏度高,选择性良好,已用于水相直接光度测定钢铁,铝合金和纯铝中的微量和痕量钛,结果满意。 A spectrophotometric method of determination of titanium with 5-Br-SAF and CTAB has been investigated. The method is highly sensitive and selective to titanium ions. The molar absorptivity of the complex is 1.81×10 5 at 536 nm. The constituent of complex is found to be 1∶4∶4. Many other metals do not interefere the determination of titanium. The method has been applied to the direct determination of Ti in steel alloys and aluminium metal with satisfactory results. 5-溴-水杨基荧光酮 CTAB 钛 光度法 5-Bromo-salicylfluorone CTAB titanium spectrophotometric determination 1989-03-01 2021-04-01 3