Determination of cocaine and its metabolites in plasma by porous membrane-protected molecularly imprinted polymer micro-solid-phase extraction and liquid chromatography-tandem mass spectrometry

1. Sánchez-González, J.
2. García-Carballal, S.
3. Cabarcos, P.
4. Tabernero, M.J.
5. Bermejo-Barrera, P.
6. Moreda-Piñeiro, A.