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In this paper we describe part of a study originally devoted to inve-stigating lateral interactions of 4-phenylbutyric acid in 'mild' chromatogra-phic systems comprising low-activity stationary phases (microcrystalline cellulose or chromatography paper) and low-polarity decalin as mobile phase. The presence or absence of lateral interactions of an analyte in a given chromatographic system can be judged from the shape of the concentration profile and for this purpose densitograms of the bands of interest must first be acquired. Our attention was unexpectedly attracted by a largely surprising observation that the concentration profile of 4-phe-nylbutyric acid on cellulose powder could be measured easily on a freshly developed chromatogram only after drying whereas on chromatography paper developed at room temperature it was hardly detectable, and became fully shaped only two days later. To explain this striking phenomenon we had to perform several additional experiments and, although the final answer is not fully conclusive, a tentative explanation can already be presented.
Słowa kluczowe
Czasopismo
Rocznik
Tom
Strony
5--15
Opis fizyczny
Bibliogr. 6 poz., rys.
Twórcy
autor
- Institute of Chemistry, Silesian University, 9, Szkolna Street, 40-006 Katowice, Poland
autor
- Institute of Chemistry, Silesian University, 9, Szkolna Street, 40-006 Katowice, Poland
autor
- Institute of Chemistry, Silesian University, 9, Szkolna Street, 40-006 Katowice, Poland
autor
- Faculty of Chemistry, Technical University of Rzeszów, Rzeszów, Poland
autor
- Institute of Chemistry, Silesian University, 9, Szkolna Street, 40-006 Katowice, Poland
Bibliografia
- [1] R.H. Fowler and E.A. Guggenheim, Statistical Thermodynamics, Cambridge University Press, Cambridge, UK, 1960
- [2] I. Quinones and G. Guiochon, J. Chromatogr. A, 796, 15 (1998)
- [3] G.I. Berezin and A.V. Kiselev, J. Colloid Interface Sci., 38, 227 (1972)
- [4] G.I. Berezin, A.V. Kiselev, and R.T. Sagatelyan, J. Colloid Interface Sci., 38, 335 (1972)
- [5] W. Prus, K. Kaczmarski, K. Tyrpień, M. Borys, and T. Kowalska, J. Liq. Chromatogr. Related Technol., 24, 1381 (2001)
- [6] K. Kaczmarski, W. Prus, C. Dobosz, P. Bojda, and T. Kowalska, J. Liq. Chromatogr. Related Technol., 25, 1469 (2002)
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-article-BAT3-0028-0046