钛-(口底)唑-CTMAB体系及其用于测定钛的探讨

高等学校化学学报 ›› 1985, Vol. 6 ›› Issue (1): 33.

钛-(口底)唑-CTMAB体系及其用于测定钛的探讨

陈玉绶, 陈明(氵禾), 蔡延平

福州大学化学化工系

收稿日期:1983-12-10 出版日期:1985-01-24 发布日期:1985-01-24

A Study of the Ternary System of Titanium(Ⅳ)-Stilbazo-Cetyl-Trimethyl Ammonium Bromide and Its Application in Spectrophotometric Determination of Titanium

Chen Yushou, Chen Minghe, Cai Yanping

Department of Chemistry, Fuzhou Univetsity,Fuzhou

Received:1983-12-10 Online:1985-01-24 Published:1985-01-24

摘要/Abstract

摘要： (口底)唑是一种灵敏的显色剂,为此本文对钛-(口底)唑-阳离子表面活性剂的三元体系进行了研究,结果表明:钛、(口底)唑和所研究的几种阳离子表面活性剂均可形成三元胶束络合物,而其中以CTMAB为最佳,其摩尔吸光系数可达1.1×10⁵。所拟定的方法用于测定水中痕量钛,结果较满意。

Abstract: In a weak-acid solution, titanium was found to be able to react with stilbazo and cetyl-trimethyl ammonium bromide(CTMAB), forming a red ternary complex. The wavelength of maximum absorbance for the complex was 520nm.The molar ratios of the components in the complex are estimated to be Ti (Ⅳ): stilbazo :CTMAB = 1:3 : 6. The present method can be applied to the determination of trace Ti in water. A 5cm cell was used in the spectrophotometric determination, the molar absorptivity was 1.1×10⁵ at 520 nm. The calibration curve well follows Beer's law in the range from 0 to 0.75 μg of Ti (Ⅳ) in 25 ml solution under the above condition. It was found that the method proposed in this work had high sensitivity and gave gratifying result in the determination of Ti (Ⅳ) in water.

TrendMD:

陈玉绶, 陈明(氵禾), 蔡延平. 钛-(口底)唑-CTMAB体系及其用于测定钛的探讨. 高等学校化学学报, 1985, 6(1): 33.

Chen Yushou, Chen Minghe, Cai Yanping. A Study of the Ternary System of Titanium(Ⅳ)-Stilbazo-Cetyl-Trimethyl Ammonium Bromide and Its Application in Spectrophotometric Determination of Titanium. Chem. J. Chinese Universities, 1985, 6(1): 33.