According to the exact masses and corresponding elemental compositions of molecular ion and eight characteristic ions , a possible fragmentation pathway of the ferulic acid molecule was proposed , by which the molecular structure was confirmed 根據(jù)質(zhì)譜提供的分子離子和8個(gè)特征碎片離子的精確質(zhì)量和相應(yīng)的元素組成,提出了阿魏酸分子的裂解途徑,結(jié)合譜圖檢索,從而確認(rèn)該分子的結(jié)構(gòu)。