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Updated: Aug 4, 2026

Investigations on the GaIII Complex of EOB-DTPA and Its 68Ga Radiolabeled Analogue
Published on: August 17, 2016
Extraction and separation of gallium, indium and thallium with several carboxylic acids from chloride media
Xiuying Zhang1, Guoyin Yin, Zhiguo Hu
1Key Laboratory of Environmental Science and Engineering, College of Chemistry and Environmental Science, Henan Normal University, Education Commission of Henan, Xinxiang, Henan, People's Republic of China.
Abstract:
A method is proposed for the extraction and individual separation of trivalent gallium, indium and thallium with sec-octylphenoxy acetic acid (CA-12), sec-nonylphenoxy acetic acid (CA-100) and naphthenic acid (NA) from chloride media. The distribution equilibria of gallium (III), indium (III), thallium (III) and thallium (I) between carboxylic acids (CA-12, CA-100 and NA) dissolved in kerosene and acidic aqueous chloride media has been investigated as a function of the concentration of extractants and the concentration of hydrogen ion in aqueous phase. A possible mechanism of the extraction is discussed. The method permits rapid and precise individual separation of gallium (III), indium (III) and thallium (III), and is applicable to the analysis of alloy samples.
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