Chloroform Aided Extraction Spectrophotometric Determination of Rhenium Using Thiocyanate Complexing Agent

材料科学技术（英）, 2005, 21(2): 239-242.

^1, , ^2, , ^3,

1.Department of Mining and Metallurgical Engineering, Amirkabir University of Technology, Hafez Ave., Tehran, Iran

2.Department of Materials Science and Engineering, Sharif University of Technology, P.O.Box 11365-9466, Tehran, Iran

3.Department of Mining and Metallurgical Engineering, Amirkabir University of Technology, Hafez Ave., Tehran, Iran

基金项目: The authors wish to thank Mrs. Maryam Akbari from Amirkabir University of Technology for her useful consultant on the method of analysis of materials

Chloroform Aided Extraction Spectrophotometric Determination of Rhenium Using Thiocyanate Complexing Agent

Keywords： Rhenium

A new technique is developed for quantitative determination of rhenium in aqueous media containing molybdenum,iron and copper ions. The method seems easier and more accurate than the traditional ones. It consists of the formation of rhenium thiocyanate complex, which is extracted with chloroform at the presence of hydrochloric acid.This complex is a highly visible light absorbent that can easily be detected with the aid of a spectrophotometer. The maximum absorbance (λmax) observed for this complex was in the visible range of 430～435 nm. The experimental results showed that in a concentration range from 0.5～8 mg/L, the absorbance behavior of the rhenium thiocyanate complex is followed to the Beer-Lambert law.

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Chloroform Aided Extraction Spectrophotometric Determination of Rhenium Using Thiocyanate Complexing Agent

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