“…Moreover, vigabatrin has no suitable chromophore to be detected by UV and no inherent fluorescence properties, requiring, therefore, derivatization techniques. Several compounds have been used as labeling agents for detection of vigabatrin by fluorescence detection (FLD) or UV detection: phenyl isothiocyanate, dansyl chloride, o ‐phthaldialdehyde (OPA), 2,4,6‐trinitrobenzene sulfonic acid (TNBSA), naproxen acyl chloride (NAC), 4‐chloro‐7‐nitrobenzofurazan, 1,2‐naphthoquinone‐4‐sulfonic acid sodium salt and 9‐flurenylmethylchloroformate (FMOC; Cetim and Atmaca, ; Amini et al ., ). However, only OPA, NAC and TNBSA have been used for the resolution of vigabatrin enantiomers by HPLC.…”