On-line identification of sugarcane (Saccharum officinarum) methoxyflavones by LC-MS/MS and LC-UV using post-column derivatization - Colombo, Renata; Yariwake, Janete Harumi; Queiroz, E. F.; Ndjoko, K.; Hostettmann, K. (Montreux Symposium on Liquid Chromatography, 2004)