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白芍为毛茛科植物芍药Paeonia lactiflora Pall,的干燥根。为常用中药。《中国药典》90版一部白芍项下规定了薄层色谱鉴别。笔者在工作实践中,按《药典》规定的白芍项薄层色谱法鉴别时,很难观察到斑点。笔者认为,因《中国药典》收载的白芍为加工品,其主要活性成分为芍药甙,传统的加工方法(去皮后沸水煮)对芍药甙的损失很大,据文献报道。加工品芍药甙的含量要比生品白芍低5～10倍。为此,对该法进行了改进,将取样量适当增加,点样量相对减少,并相应的延长了提取时间,取得了比较满意的效果。现将实验结果报道如下。
The white peony is the dry root of Paeonia lactiflora Pall, a peony herb. For traditional Chinese medicine. A thin-layer chromatographic identification is provided for in the White Phasing of the Chinese Pharmacopoeia 90. The author in the work practice, according to the “Pharmacopoeia” provisions of the thin section chromatography identification of white matter, it is difficult to observe the spots. The author believes that because the white peony collected in the Chinese Pharmacopoeia is a processed product, its main active ingredient is peony peony, and the traditional processing method (boiling boiled after peeling) has a great loss to peony peony, according to the literature. The content of processed peony is 5 to 10 times lower than that of raw white fish. For this reason, the law has been improved, the sample volume has been appropriately increased, the sample quantity has been relatively reduced, and the extraction time has been correspondingly extended, and satisfactory results have been achieved. The experimental results are reported below.