Sensitive and quantitative group-type analysis (Alkanes-Naphthenes-Aromatics-Polars) of a wide range of petroleum products using berberine-induced fluorescence densitometry in thin-layer chromatographic systems

1. Cebolla, V.L.
2. Membrado, L.
3. Domingo, M.P.
4. Garriga, R.
5. Gálvez, E.M.
6. Cossío, F.
7. Arrieta, A.
8. Vela, J.