Identification was based on LC and MS–MS library containing 32 phenolic compounds established by ESI-LC/MS under negative ion mode and on the literature results (Sanchez-Rabaneda et al., 2003; Sun, Liang, Bin, Li, & Duan, 2007).
Identification was based on LC and MS–MS library containing32 phenolic compounds established by ESI-LC/MS under negativeion mode and on the literature results (Sanchez-Rabaneda et al.,2003; Sun, Liang, Bin, Li, & Duan, 2007).