Ionic liquids versus ionic liquid-based surfactants in dispersive liquid–liquid microextraction for determining copper in water by flame atomic absorption spectrometry

1. Ayala-Cabrera, J.F.
2. Trujillo-Rodríguez, M.J.
3. Pino, V.
4. Hernández-Torres, Ó.M.
5. Afonso, A.M.
6. Sirieix-Plénet, J.