In comparison with those of 1,8-dihydric anthraquinones, the characteristic TG-DTA curves of the free anthraquinones (Rhein, Emodin, Aloe-emodin, Chrysophanol and Physcion) from Rheum were determined.

 
  • 摘要以1,8-二羥基蒽醌為對照,利用熱重-差熱分析儀對從大黃中分離純化的游離羥基蒽醌(大黃酸、大黃素、蘆薈大黃素、大黃素甲醚和大黃酚)進(jìn)行了測定,得到這些樣品的熱分析圖譜。
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