| 青海不同产区大黄的X-射线衍射图谱研究（摘要） |
| |
| 引用本文： | 王宁芳,拉本.青海不同产区大黄的X-射线衍射图谱研究（摘要）[J].农业科学与技术,2009,10(6):119-120,124. |
| |
| 作者姓名： | 王宁芳 拉本 |
| |
| 作者单位： | 青海师范大学,青海西宁,810008 |
| |
| 摘 要： | 目的]为区分不同产地大黄药材的质量及鉴别提供依据。方法]将供试材料青海玉树掌叶大黄（样品1）、青海海南唐古特大黄（样品2）与青海果洛唐古特大黄（样品3）分别粉碎成粉末,过100目筛,即可供X射线衍射试验用。设定管压30 kV,管流20 mA,2θ扫描范围3°～90°,扫描速度0.06°/s,每种样时间0.5 s,获得3种不同产区大黄的X-射线衍射图谱。试验数据以晶面间距d与特征峰相对强度L/Io表示,记为d/（I/Io）。将试验数据导入中药指纹图谱相似度计算软件,经选峰,设定匹配模板,将谱峰自动匹配,然后设定标准模板,进行谱峰差异性评价和整体相似性评价。结果]样品1中所含的化学成分与样品2相同,但峰的强度（I/Io）不同,表明相同成分在两种样品中的含量不相等。同样把样品3的图谱与其他两个样品进行比较,也会得到相同的衍射峰值。表明不同产区的大黄中各化学成分的含量有差异,但其衍射图谱及衍射峰值具有一定的指纹特征。结论]X-射线衍射法是鉴别不同产区的大黄及其他中药材的一种快捷有效的方法。
|
| 关 键 词： | 大黄 X-射线衍射图谱 衍射峰值 指纹性特征 |
X-ray Comparative Analysis of Rhubarb in Different Production Areas of Qinghai |
| |
| WANG Ning-fang,LA Ben.X-ray Comparative Analysis of Rhubarb in Different Production Areas of Qinghai[J].Agricultural Science ＆ Technology,2009,10(6):119-120,124. |
| |
| Authors: | WANG Ning-fang LA Ben |
| |
| Institution: | (Qinghai Normal University, Xining 810008) |
| |
| Abstract: | Objective] The aim of this study was to provide a basis for distinguishing quality of rhubarb in different production areas. Method ] X-ray diffraction patterns of rhubarbs in different production areas of Qinghai were obtained by X-ray diffraction analysis, and then its similarity analysis was also investigated. Result] The content of chemical components in rhubarbs from different production areas had differences, but its diffraction patterns and diffraction peaks had certain fingerprint characteristics. Conclusion] X-ray diffraction method is a fast and effective method for identifying rhubarb and other Chinese herbal medicines in different production areas. |
| |
| Keywords: | Rhubarb X-ray Diffraction map Diffraction peak Fingerprint characteristics |
| 本文献已被 维普 万方数据 等数据库收录！ |
|
