锆—对氯苯基荧光酮—溴化十六烷基三钾基铵显色反应的研究

Study on the Color Reaction of Zirconium with p-Chloro-Phenylfluorone and Cetyl Trimsthyl Ammonium Bromide

本文介绍了在0.14～0.18mol/LHCl介质中,利用Zr与p-Cl-PF和CTMAB形成的有色络合物进行分光光度法的研究,所建立的方法已成功地用于实际样品中Zr的测定。

A new color reaction of the zirconium with p-chlorophenylfluorone and cetyl trimethyl ammonium bromide has been studied. In hydrochloride acid medium (0.14-0.18mol/L) , zirconium can form a ternary complex with the above mentioned reagents. The complex exhibits maximum absorption at 538nm and the value of apparent mol ir absorption coefficient is found to be 1.54X105. The constituent of the complex is also established as Zr : p-Cl-PF = l:4 in the presence of CTMAB. The Beer's law is obeyed in the range of 0-10ug Zr/25ml. The method has been used, for the d,etermin-ation of zirconium in some alloys with satisfactory results.