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目的 确认阿魏酸的异构体转换反应及川芎、当归药材中阿魏酸的存在形式。方法 采用高效液相色谱法、液相色谱-质谱联用等手段研究阿魏酸的异构体转换。结果 反式阿魏酸在常规保存条件下,可部分转变成塑顺式,在川芎和当归药材中,反式和顺式阿魏酸是共存的。结论 反式阿魏酸有较好的热稳定性,但存在缓慢的异构体转换反应。
Object To investigate the isomer transition reaction of ferulic acid and the existing form of ferulic acid in Ligusticum chuanxiong Hort. and Angelica sinensis (Oliv.) Diels. Methods HPLC and HPLC-MS were used to confirm the isomer transition of ferulic acid. Results The trans-ferulic acid was translated into cis-ferulic acid partly when its solution was deposited under some routine conditions,and the trans- and cis-ferulic acids could coexist in the Chinese medicinal materials,L. chuanxiong and A. sinensis. Conclusion The trans-ferulic acid is stable thermodynamicly,but could be translated into cis-ferulic acid partly and slowly.
