参考文献:10.1016/j.chroma.2005.10.065 摘要:Shoji T, Masumoto S, Moriichi N, Kanda T, Ohtake Y. Apple (Malus pumila) procyanidins fractionated according to the degree of polymerization using normal-phase chromatography and characterized by HPLC-ESI/MS and MALDI-TOF/MS. J Chromatogr A. 2006 Jan 13;1102(1-2):206–13. doi: 10.1016/j.chroma.2005.10.065.