@article{ravelo-pérez_hernández-borges_rodríguez-delgado_2008, title={Multiwalled carbon nanotubes as solid-phase extraction materials for the gas chromatographic determination of organophosphorus pesticides in waters}, volume={31}, ISSN={1615-9306}, DOI={10.1002/JSSC.200800352}, number={20}, journal={Journal of Separation Science}, author={Ravelo-Pérez, Lidia M. and Hernández-Borges, Javier and Rodríguez-Delgado, Miguel Ángel}, year={2008}, pages={3612-3619} }