Separation and determination of aminoanthraquinones by means of thin-layer chromatography

Maximum resolution per unit time in liquid-solid adsorption chromatography. Separation on column vs. thin layers

“…If the A term is in fact the most important contribution to H in TLC, H should be independent of RF, and this appears to be the case-cf. above discussion (14).…”

“…discussion of Stewart for paper chromatography (16). However one study (14) shows //equal to 0.013 ± 0.002 (std. dev.)…”

“…Bed Efficiencies in TLC. A cursory review of the literature (14,15) indicates that H values in TLC are generally between 0.013 and 0.017 cm, with an occasional value as low as 0.004 cm.…”

Chromatography

“…Special attention has been focussed on polynuclear carbonyl compounds (1767), anthraquinones (379,539,1185,1340,1570,2243), naphthoquinones (426), benzoquinones (1543), lipoquinones (466), 1,3-indanediones (697, 1076), and cinnamaldehyde (149). 2,4-Dinitrophenylhydrazones have also been chromatographed on partition columns (553, 970), and frontal analysis was used to determine furfural (980).…”