千斤拔药材的质量标准研究
x

请在关注微信后,向客服人员索取文件

篇名: 千斤拔药材的质量标准研究
TITLE:
摘要: 目的:建立千斤拔药材的质量标准。方法:观察千斤拔药材性状和显微鉴别特征;采用薄层色谱法(TLC)对药材中染料木苷和染料木素进行定性鉴别;检查药材水分、总灰分和浸出物。采用高效液相色谱法(HPLC)测定药材中染料木苷和染料木素的含量:色谱柱为Thermo BETASIL C18,流动相为乙腈-0.5%冰醋酸(梯度洗脱),流速为1.0 ml/min,检测波长为261 nm,柱温为25 ℃,进样量为10 μl。结果:千斤拔和大叶千斤拔的性状和显微鉴别特征显著;染料木苷和染料木素的TLC斑点清晰,分离良好,阴性对照无干扰;药材水分为3.69%~8.37%,总灰分为1.72%~6.74%,浸出物为5.89%~19.65%。染料木苷和染料木素检测进样量线性范围分别为0.012 9~2.588 0、0.004 6~0.923 2 μg(r均为0.999 9);精密度、稳定性、重复性试验的RSD<3.0%;加样回收率分别为99.63%~101.87%(RSD=0.82%,n=6)、97.19%~100.34%(RSD=1.23%,n=6)。结论:该标准可用于千斤拔药材的质量控制。
ABSTRACT: OBJECTIVE: To establish the quality standard of Flemingia philippinensis. METHODS: The properties and microscopic characteristics were observed; TLC was adopted for qualitative identification of genistin and genistein; the moisture, total ash and extract were detected; HPLC was adopted for contents determination of genistin and genistein:the column was Thermo BETASIL C18 with mobile phase of Acetonitrile -0.5% glacial acetic acid (gradient elution) at a flow rate of 1.0 ml/min, the detection wavelength was 261 nm, column temperature was 25 ℃, and the injection volume was 10 μl. RESULTS: The properties and microscopic characteristics of F. philippinensis and F. macrophylla showed strong specificity. TLC spots of genistin and genistein we- re clear and well separated, with no interference in negative control. The moisture was 3.69%-8.37%,total ash was 1.72%-6.74%, and extract was 5.89%-19.65%. The linear range was 0.012 9-2.588 μg for genistin (r=0.999 9) and 0.004 6-0.923 2 μg for genistein (r=0.999 9); RSDs of precision, stability and reproducibility tests were lower than 3.0%; recoveries were 99.63%-101.87% (RSD=0.82%,n=6) and 97.19%-100.34% (RSD=1.23%,n=6). CONCLUSIONS: The method is simple, accurate and specific, and can be used for the quality control of F. philippinensis.
期刊: 2016年第27卷第24期
作者: 林锦锋,李清明,朱玉芳,陈浩桉
AUTHORS: LIN Jinfeng,LI Qingming,ZHU Yufang,CHEN Hao’an
关键字: 千斤拔;大叶千斤拔;质量标准;薄层色谱法;高效液相色谱法;染料木苷;染料木素
KEYWORDS: Flemingia philippinessis; Flemingia macrophylla; Quality standard; TLC; HPLC; Genistin; Genistein
阅读数: 494 次
本月下载数: 9 次

* 注:未经本站明确许可,任何网站不得非法盗链资源下载连接及抄袭本站原创内容资源!在此感谢您的支持与合作!