title: Analysis of illicit drugs by direct ablation of solid samples.
abstract: Analysis of illicit drugs arises as an important field of work given the high social impacts presented by drugs in the modern society. Direct laser ablation of solid compounds allows their analysis without sampling or preparation procedures. For that purpose, an experimental set-up that combines laser ablation with time-of- flight mass spectrometry has been constructed very recently to perform studies on the mass spectra of such drugs as 3,4-methylenedioxy-N-methylamphetamine, commonly known as MDMA or ecstasy. Analysis of the observed fragmentation pattern in mass spectra may elucidate the ablation-induced photofragmentation phenomena produced, which differ from those previously observed with conventional ionization methods.
authors.affiliation: Grupo de Espectroscopia Molecular (GEM), Edificio Quifima. Laboratorios de Espectroscopia y Bioespectroscopia, Unidad Asociada CSIC, Parque Científico Uva, Universidad de Valladolid, Paseo Belén 5, ES-47011, Valladolid, Spain. cbermu@qf.uva.es.
authors.forename: Celina
authors.initials: C
authors.lastname: Bermúdez
authors.affiliation: Grupo de Espectroscopia Molecular (GEM), Edificio Quifima. Laboratorios de Espectroscopia y Bioespectroscopia, Unidad Asociada CSIC, Parque Científico Uva, Universidad de Valladolid, Paseo Belén 5, ES-47011, Valladolid, Spain. ccabezas@qf.uva.es.
authors.forename: Carlos
authors.initials: C
authors.lastname: Cabezas
authors.affiliation: Grupo de Espectroscopia Molecular (GEM), Edificio Quifima. Laboratorios de Espectroscopia y Bioespectroscopia, Unidad Asociada CSIC, Parque Científico Uva, Universidad de Valladolid, Paseo Belén 5, ES-47011, Valladolid, Spain. santiago.mata@qf.uva.es.
authors.forename: Santiago
authors.initials: S
authors.lastname: Mata
authors.affiliation: Grupo de Espectroscopia Molecular (GEM), Edificio Quifima. Laboratorios de Espectroscopia y Bioespectroscopia, Unidad Asociada CSIC, Parque Científico Uva, Universidad de Valladolid, Paseo Belén 5, ES-47011, Valladolid, Spain. >Present address: Universidad Nacional de Córdoba, Argentina.. matiasberdakin@gmail.com.
authors.forename: Matias
authors.initials: M
authors.lastname: Berdakin
authors.affiliation: Delegación del Gobierno de Castilla y León. Área de Sanidad y Política Social, Plaza del Milenio s/n, ES-47014, Valladolid, Spain.. jesusmiguel.tejedor@seap.minhop.es.
authors.forename: Jesús M
authors.initials: JM
authors.lastname: Tejedor
authors.affiliation: Grupo de Espectroscopia Molecular (GEM), Edificio Quifima. Laboratorios de Espectroscopia y Bioespectroscopia, Unidad Asociada CSIC, Parque Científico Uva, Universidad de Valladolid, Paseo Belén 5, ES-47011, Valladolid, Spain. jlalonso@qf.uva.es.
authors.forename: José L
authors.initials: JL
authors.lastname: Alonso