雷公藤及其伪品的热分析研究 点击下载
论文标题: | 雷公藤及其伪品的热分析研究 |
英文标题: | |
中文摘要: | 目的:为雷公藤的鉴别、炮制及热分解产物研究提供参考。方法:采用热重-微商热重(TG-DTG)和差热-微商差热(DTA-DDTA)分析法对3个产地雷公藤及其同属种昆明山海棠、东北雷公藤及其常见伪品藤梨根、野葡萄根进行热谱扫描分析,测定7批药材及其药渣、浸膏样品的热谱,分析雷公藤药材与药渣样品热谱的差谱。结果:7批药材的TG-DTG和DTA-DDTA热谱基本相似,并与本身药渣热谱基本相似。3个产地雷公藤及其同属种昆明山海棠浸膏的DTG曲线均呈(299±3)℃单一主峰,且强度相似,而东北雷公藤及伪品藤梨根和野葡萄根DTG曲线呈多个峰,且(299±3)℃不为主峰。结论:药材热谱不能区分雷公藤及其伪品;浸膏DTG曲线特征可区分雷公藤及其伪品;雷公藤的适宜煨法炮制温度为200~380 ℃。该研究结果可为雷公藤的鉴别、炮制及热分解产物研究提供一定参考。 |
英文摘要: | OBJECTIVE: To provide reference for the identification, processing, processing technology and research for thermal decomposition products. METHODS: Thermogravimetry - derivative thermogravimetry (TG-DTG) and differential thermal-derivative differential thermal (DTA-DDTA) analysis were conducted to scan thermal spectrum of tripterygium from 3 places and T. hypoglaucum, T. regelii, common counterfeits Actinidia arguta and Vitis quinquangularis, determine 7 medicinal materials, its dregs and extractum, and analyze differential spectrum of T. wilfordii and dregs. RESULTS: The TG-DTG and DTA-DDTA thermal spectrum were not only basically similar to each other but also to their dregs. There was a singlet main characteristics peak at about(299±3)℃ only in the DTG curves of extracts of tripterygium from 3 places and T. hypoglaucum extractum with similar intensity, while T. regelii, counterfeits A. arguta and V. quinquangularis showed multiple peaks, and (299±3)℃ was not the main peak. CONCLUSIONS: The thermal spectrum can not distinguish tripterygium and its counterfeits; extractum DTG curves can do it; suitable processing temperature of tripterygium was 200-380 ℃. The study can provide reference for the identification, processing, processing technology and research for thermal decomposition products. |
期刊: | 2016年第27卷第30期 |
作者: | 刘建群,余昭芬 |
英文作者: | LIU Jianqun,YU Zhaofen |
关键字: | 雷公藤;伪品;热分析;鉴别;炮制 |
KEYWORDS: | Tripterygium wilfordii; Counterfeit; Thermal analysis; Identification; Processing |
总下载数: | 81次 |
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本月下载数: | 81次 |
文件大小: | 619.60Kb |
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