首页 | 本学科首页   官方微博 | 高级检索  
     检索      

芦丁热稳定性的红外光谱法实时原位跟踪
引用本文:周群,孙素琴,杜德国,梁曦云,杨显荣.芦丁热稳定性的红外光谱法实时原位跟踪[J].光谱学与光谱分析,2000,20(2):195-198.
作者姓名:周群  孙素琴  杜德国  梁曦云  杨显荣
作者单位:1. 清华大学化学系,北京,100084
2. 香港浸会大学中医药研究所,香港
摘    要:本文首次利用傅叶变换红外光谱法和变温附件」产时原位跟踪了天然药物芦丁折为性过程。结果表明:25℃-270℃温度范围内,芦丁的热变性过程是一个伴随着芦丁氧化的热分解过程。在较低温度下(75℃)芦丁的分子结构就开始发生变化,不仅暗示了中国态的存在,还进一步验证芦丁的稳定性较差;在较高温度下(270℃)芦丁分解成两种产物。该方法快速、准确、无溶剂效应,可进行榈的无损原位检测。

关 键 词:芦丁  红外光谱  热稳定性  原位跟踪  中草药

Real Time Monitor of Rutin Stability During Heating by Fourier Transform Infrared Spectroscopy
Qun ZHOU,Suqin SUN,Deguo DU,Xiyun LIANG and Xianrong YANG.Real Time Monitor of Rutin Stability During Heating by Fourier Transform Infrared Spectroscopy[J].Spectroscopy and Spectral Analysis,2000,20(2):195-198.
Authors:Qun ZHOU  Suqin SUN  Deguo DU  Xiyun LIANG and Xianrong YANG
Institution:Department of Chemistry, Tsinghua University, 100084 Beijing.
Abstract:The thermal stability of the natural product of rutin was studied by Fourier Transform Infrared Spectroscopy (FTIR) in this paper for the first time. To monitor the changing of rutin in real time, the temperature-control accessory was also used to in-situ follow the thermal behavior. It is demonstrated that as the temperature increased from 25 degrees C to 270 degrees C, the thermally-induced denaturation of rutin was accompanied by the oxidation and thermal discomposed procedure. The structure of rutin changed at a lower temperature (75 degrees C). This is not only indicating the existence of an intermediate state, but also approved that the stability of rutin is poor. While at the higher temperature (270 degrees C), rutin discomposed into two results. It is proved that this method is fast, accurate and having no solvent effect. Samples can thus be examined undestroyed.
Keywords:Rutin    FTIR    Stability    In situ    Real time  
本文献已被 CNKI 维普 万方数据 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号