Esterification of aliphatic hydroxy acids to n-butyl esters in aqueous solutions for their gas chromatographic analysis

I. Molnár-Perl, V. Fábián-Vonsik, M. Pintér-Szakács

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

Aliphatic hydroxy acids were esterified in aqueous solution in the presence of sulfuric acid. Esterification of lactic, tartronic malic and citric acids in water/n-butanol mixtures with mole ratios between 0.02 and 2.53 can be utilized for the determination of these aliphatic hydroxy acids by gas chromatography. Water does not interfere at water/n-butanol mole ratios below 0.02. For mole ratios above 0.02 anhydrous sodium sulfate is used for the binding of water. The mole ratio range was 0.25-2.53 for anhydrous sodium sulfate/water, and 0.32-1.27 for sulfuric acid/anhydrous sodium sulfate.

Original languageEnglish
Pages (from-to)421-424
Number of pages4
JournalChromatographia
Volume20
Issue number7
DOIs
Publication statusPublished - Jul 1985

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Hydroxy Acids
Esterification
Gas chromatography
Gas Chromatography
Esters
Fatty Acids
Water
1-Butanol
Citric Acid
Milk
sodium sulfate

Keywords

  • Esterification in aqueous solution
  • Gas chromatography
  • n-Butyl esters of aliphatic hydroxy acids

ASJC Scopus subject areas

  • Analytical Chemistry
  • Clinical Biochemistry

Cite this

Esterification of aliphatic hydroxy acids to n-butyl esters in aqueous solutions for their gas chromatographic analysis. / Molnár-Perl, I.; Fábián-Vonsik, V.; Pintér-Szakács, M.

In: Chromatographia, Vol. 20, No. 7, 07.1985, p. 421-424.

Research output: Contribution to journalArticle

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