Off-line dansylation of amines using C18 solid-phase packings: Study of the fluorescence and chemiluminescence detection by post-column derivatization with oxalic acid bis(2, 4, 6-trichloro phenyl ester)/H2O2 in liquid chromatography. Determination of amphetamines in urine samples

1. Molins-Legua, C.
2. Campíns-Falcó, P.
3. Sevillano Cabeza, A.