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New methods of quantitation in thin-layer chromatography: tubular thin-layer chromatography [TTLC].

Techniques used in the quantitative evaluation of thin-layer chromatograms are compared. The quantitation of tubular thin-layer chromatograms by means of vapor-phase detectors is emphasized, and typical examples of the use of this method are outlined. Applications of tubular thin-layer chromatography (TTLC) in the quantitative analysis of fish liver oils are described.