Preconcentration of Ti(IV) in Ore and Water by Cloud Point Extraction and Determination by UV-Vis Spectrophotometry

被引：9

作者：

Masrournia, Mahboubeh ^{[1
]}

Vaziry, Azam ^{[1
]}

机构：

[1] Islamic Azad Univ, Mashhad Branch, Dept Chem, Fac Sci, POB 91735-413, Mashhad, Iran

来源：

JOURNAL OF ANALYTICAL CHEMISTRY | 2018年 / 73卷 / 02期

关键词：

titanium(IV) ion; cloud point extraction; UV-Vis spectrophotometry; ATOMIC-ABSORPTION-SPECTROMETRY; SOLID-PHASE EXTRACTION; AQUEOUS SAMPLES; MICELLAR MEDIA; TITANIUM; CHROMIUM(III); SURFACTANT; SEPARATION; METALS; FOOD;

D O I：

10.1134/S1061934818020077

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Trace amounts of titanium(IV) were determined with a simple and selective method based on cloud point extraction. Preconcentration of titanium from aqueous solution was performed using Triton X-114 surfactant and 4-(2-pyridylazo) resorcinol as complexing agent. After centrifugation, the surfactant- rich phase was removed, diluted with water and ethanol, transferred into a 500 mu L quartz cell, and its absorbance was measured at 520 nm. The effect of experimental conditions influencing the extraction process was considered. In the optimum conditions, linearity ranges was 0.01-0.1 with the correlation coefficients (R-2) of 0.9903. The limits of detection was 0.005. The method was successfully used for the determination of titanium(IV) in the samples of ore and river water with relative recovery of 98aEuro'99%.

引用

页码：128 / 132

页数：5

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