Fig. 6

Densitograms of the separated mixtures on SC-2P/Cu²⁺ TLC plates. Spots mentioned from left to right as a p-, m-, and o-nitrophenol using n-hexane:DCE:n-propanol (75:20:5, v/v/v) as mobile phase system and b R(−)-, S(+)-ibuprofen using DCE:acetonitrile (90:10, v/v) as mobile phase system