Mixed solvents in gas-liquid chromatography. Activity coefficients for diethyl ether in squalane and dinonyl phthalate mixtures at 303°K

Anthony J. Ashworth, Trevor M. Letcher, Gareth J. Price

Research output: Contribution to journalArticlepeer-review

Abstract

Activity and partition coefficients for the polar solute diethyl ether at infinite dilution in squalane and dinonyl phthalate solvent mixtures have been determined at 303°K by the extrapolation of measurements made using a vacuum microbalance technique. The results are compared to predictions using the Purnell-Andrade and the Tiley-Perry relationships. The effect on the activity coefficients resulting from various solvent-solid support ratios has also been investigated.

Original languageEnglish
Pages (from-to)33-39
Number of pages7
JournalJournal of Chromatography A
Volume262
Issue numberC
DOIs
Publication statusPublished - 1 Jan 1983

Funding

T.M.L. gratefully acknowledges the financial support of Rhodes University and the CSIR (South Africa). G.J.P. wishes to thank the Science and Engineering Research Council (Great Britain) for the award of a research studentship.

ASJC Scopus subject areas

  • Analytical Chemistry

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