Free Access
Volume 28, Number 9, November 2000
Endocrine disruptors
Page(s) 859 - 863
Section Original articles
Analusis 28, 859-863 (2000)
DOI: 10.1051/analusis:2000157

On the use of a peak deconvolution procedure for the determination of energy barrier to enantiomerization in dynamic chromatography

J. Krupcík1, P. Oswald1, I. Spánik1, P. Májek1, M. Bajdichová1, P. Sandra2 and D.W. Armstrong3

1  Department of Analytical Chemistry, Faculty of Chemical Technology, Slovak Technical University, Radlinského 9, 812 37 Bratislava, Slovak Republic
2  Laboratory of Organic Chemistry, University of Gent, Krijgslaan 281 (S4), 9000 Gent, Belgium
3  Department of Chemistry, University of Missouri-Rolla, Rolla, Missouri, USA

(Received September 19, 2000; accepted October 5, 2000.)

Manual or computer assisted peak deconvolution on chromatograms of the racemate of 1-chloro-2,2-dimethylaziridine enantiomers GC was used to determine the peak areas of enantiomers in the racemate prior (AA,0, AB,0) and after the separation (AA, AB). These peak areas were used in the determination of apparent rate constants and apparent energy barrier to enantiomerization. Comparison of apparent energy barriers determined using deconvolution of chromatograms with data published in literature showed differences within 7% rel.

Key words: Gas chromatography -- peak deconvolution -- energy barrier to enantiomerization -- 1-chloro-2,2-dimethylaziridine enantiomers.

© EDP Sciences, Wiley-VCH 2000