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Three-phase extraction in analysis of mixtures of mineral oils, fats, amines, and dyes
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HERO ID 8358724 Year 1989 Authors Frankovskii, VA; Pyatnitskii, IV; Aleinova, AP Volume 55 Issue 5 Page Numbers 41-44 Abstract Distribution of dyes, trioctylamine, oils, and fats between three liquid systems was studied: 3 M aqueous sodium chlorides solution-acetonitrile-hexane. It was shown that fats and oils are predominately extracted into the alkane phase, the dye is distributed between aqueous and acetonitrile phases as a function of structure, and trioctylamine is found in the acetonitrile phase at pH 0-4 and is quantitatively redictributed into the hexane phase at pH 8-13. A method was developed for the distribution and determination of a mixture of four organic materials (two dyes, trioctylamine, and a fat or oil) by carrying out two parallel three-phase extractions at pH 0-4 and 9-13. Comments Journal: Soviet progress in chemistry ISSN: 00385743 (ISSN)Scopus URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-0024896811&partnerID=40&md5=04cf40a78855490a2ec5aa4c14640d92 |
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