Determination of toluene, n-heptane, [emim][EtSO4], and [bmim][MeSO4] Ionic liquids concentrations in quaternary mixtures by UV-vis spectroscopy

1. Torrecilla, J.S.
2. Rojo, E.
3. García, J.
4. Oliet, M.
5. Rodríguez, F.