Gas-phase dissociation of 1,4-naphthoquinone derivative anions by electrospray ionization tandem mass spectrometry - Vessecchi, Ricardo; Carollo, Carlos Alexandre; Lopes, Jose Norberto Callegari; Crotti, Antonio Eduardo Miller; Lopes, Norberto Peporine; Galembeck, Sérgio Emanuel (Journal of Mass Spectrometry, 2009)