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2. K. Randerath, Thin-Layer Chromatography, Academic Press, New York, 1969.
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4. A. Waksmundzki andJ. K. Różyło, J. Chromatogr.33, 90 (1968).
5. L. R. Snyder, Principles of Adsorption Chromatography, M. Dekker Inc., New York, 1968.