摘要
丹酚酸B(salvianic acid B)和迷迭香酸都属于水溶性天然酚酸类化合物,都具有很高的药用价值,为了最大限度的除去其他杂质成分的干扰,更准确的测定丹参中丹酚酸B(略)和迷迭香酸的含量,往HPLC的流动相(甲醇:1%甲酸=40:60)中加入3mmol/L的尿素,流动相中加入尿素后在280nm处进行测定发现迷迭香酸峰形良好,较未加尿素有很大改善。分析其原因可能是尿素与迷迭香酸产生了一定的配位作用,使迷迭香酸的结构发生了变化,而这种变化差异使迷迭香酸具有较之前更好的分离效果。此方法简便快速,可作为迷迭香酸和丹酚酸B同时测定的一种新方法。
Both salvianic acid B and rosmarinicacid are water-soluble hydroxybenzene acids. They are all highly valued as medicine. 3mmol/L carbamide were added into the mobile phase(methanol: 1% formic acid=40:60) to get hold of more pure salvianic acid B(omit) and rosmarinicacid. They were detected at 280 nm with the peak of rosmarinicacid much better than before(There was no carbamide in the mobile phase). We supposed that rosmarinicacid had a kind of coordination with carbamide in the mobile phase and this coordination made the structure of rosmarinicacid different from before. So this detection method seems better. The method is simple for characterizing, purifing and determinating salvianic acid B and rosmarinicacid.
出处
《食品科学》
EI
CAS
CSCD
北大核心
2008年第1期277-279,共3页
Food Science
基金
高等学校博士学科点专项科研基金资助项目(20020359011)
关键词
迷迭香酸
丹酚酸B
配位
尿素
HPLC
rosemarinicacid
salvianic acid B
combinations carbamide
HPLC