Fig. 1. Image ofthechromatographicplateinvisiblemodeandgreenscalerespectivelyafterthespotdetectionwith(a) o-phtalaldehide; (b) fluorescamine; and
(c) ninhydrin.(Forinterpretationofthereferencestocolorinthis figure legend,thereaderisreferredtothewebversionofthisarticle.)
I.A.Sima(Tuhuţiu) etal./Talanta114(2013)117–123 119