摘要
本文研究了 Ge(IV)一O—Cl—PF—Tween—60显色体系。在2.0～7.0N硫酸介质中,络合物的最大吸收在514nm处,ε为1.8l×10~5,锗浓度在0～8.92μg/25ml 范围内符合比耳定律。在 Tween—60存在下,Ge(IV):O—C1一PF=1:4。
A new colowr reaction of Ge(Ⅳ) With O-Cl-PF and Tween-60 has been studied.The maximum absorption and molar absorptivity of the Complex respectively are 514 nm and 1.81×10~5 L.mol^(-1).cm^(-1) in 2.0- 7.0N H_2SO_4 medium. Beer's law is obeyed in the range of 0-8.92 μg Ge/25ml.The costituent of the complex is estimated as Ge(Ⅳ):O-Cl-PF=1∶4 in the presence of Tween-60. The method has been successfully applied to the direct determination of micro amounts of Ge(Ⅳ) in Ores.
出处
《贵州大学学报（自然科学版）》
1989年第1期58-64,共7页
Journal of Guizhou University:Natural Sciences
关键词
锗
显色反应
邻氯基苯基
荧光酮
spectrophotometry
germanium
2,3,7-trihydroxy-9-O-chloro-phenylfluorone
Tween-60.
