On-line identification of further flavone C- and O-glycosides from sugarcane (Saccharum officinarum L., Gramineae) by HPLC-UV-MS - Colombo, Renata; Yariwake, Janete Harumi; Queiroz, Emerson F; Ndjoko, Karine; Hostettmann, Kurt (Phytochemical Analysis, 2006)