苗药血人参的质量标准研究
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篇名: 苗药血人参的质量标准研究
TITLE:
摘要: 目的:建立苗药血人参药材的质量标准。方法:鉴别药材性状和显微特征;采用薄层色谱法(TLC)对药材进行定性鉴别;采用高效液相色谱法测定药材中表儿茶素、2α,3α-epoxy-5,7,3′ ,4′ -tetra-hydroxy-flavan-(4β→8)-epicatechin(成分A)的含量:色谱柱为Comatex TM C18,流动相为乙腈-水(梯度洗脱),流速为1.0 ml/min,检测波长为210 nm,柱温为30 ℃,进样量为5 μl。结果:药材性状和粉末显微鉴别图谱清晰。血人参的TLC图斑点清晰,分离良好。表儿茶素、成分A检测进样量线性范围分别为0.274 5~4.392 0 μg(r=0.999 6)、0.103 0~1.648 3 μg(r=0.999 4);精密度、稳定性、重复性试验的RSD<3%;加样回收率分别为99.76%~104.82%(RSD=2.42%,n=6)、97.98%~104.99%(RSD=2.75%,n=6)。结论:该研究所建标准可用于血人参的质量控制。
ABSTRACT: OBJECTIVE: To establish the quality standard for Mian medicine Indigofera stachyoides. METHODS: Medicinal properties and microscopic characteristics were identified; TLC was used for the qualitative identification; HPLC was conducted for content determination of epicatechin and 2α,3α-epoxy-5,7,3′ ,4′ -tetra-hydroxy-flavan-(4β→8)-epicatechin(reference A): the column was Comatex TM C18 with mobile phase of acetonitrile - water at a flow rate of 1.0 ml/min, and detection wavelength was 210 nm, column temperature was 30 ℃, injection volume was 5 μl. RESULTS: It showed clear microscopic identification map. I. stachyoides TLC had clear spots and well separated. The linear range was 0.274 5-4.392 0 μg (r=0.999 6) for epicatechin,and 0.103 0-1.648 3 μg for reference A (r=0.999 4), RSDs of precision, stability and reproducibility tests were lower than 3%,recoveries were 99.76%-104.82% (RSD=2.42%,n=6) and 97.98%-104.99%(RSD=2.75%,n=6) respectively. CONCLUSIONS: The established standard can be used for the quality control of I. stachyoides.
期刊: 2016年第27卷第27期
作者: 朱新宇,骆瀚超,何茂秋,胡朝阳,梁妍,郝小燕
AUTHORS: ZHU Xinyu,LUO Hanchao,HE Maoqiu,HU Zhaoyang,LIANG Yan,HAO Xiaoyan
关键字: 血人参;生药学鉴别法;薄层色谱法;高效液相色谱法;含量测定
KEYWORDS: Indigofera stachyoides; Pharmacognostic identification; TLC; HPLC; Content determination
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