Rapid field identification of subjects involved in firearm-related crimes based on electroanalysis coupled with advanced chemometric data treatment - Cetó Alsedà, Xavier (Universitat Autònoma de Barcelona. Departament de Química) ; O'Mahony, Aoife M. (University of California. Department of Nanoengineering) ; Samek, Izabela A. (University of California. Department of Nanoengineering) ; Windmiller, Joshua R. (University of California. Department of Nanoengineering) ; Valle Zafra, Manuel del (Universitat Autònoma de Barcelona. Departament de Química) ; Wang, Joseph (University of California. Department of Nanoengineering)