@article{articlecfd5005c,
title   = {Balance of xanthophylls molecular and protonated molecular ions in electrospray ionization},
author = {Guaratini, Thais and Vessecchi, Ricardo and Pinto, Ernani and Colepicolo, Pio and Lopes, Norberto Peporine},
year = {2005},
doi = {10.1002/jms.874},
journal   = {Journal of Mass Spectroscopy}
}