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中药中的有效成分,根据产地、采集季节、植物部位、炮制方法和保存条件等的不同,而有所不同。对中药原植物的鉴别过去主要靠目视或用显微镜观察,即作形态学上的识别。这些方法现在仍然有重要的价值。但同一科植物虽然形态上近似,而其化学成分则不仅有量的差异,甚至有质的区别。这就需要采用更精确的定量分析方法。中医许多有名处方,如麻黄汤、六神丸、人参汤、小柴胡汤、黄连汤等,在东南亚、朝鲜、日本都享有盛名。近年来日本中药制剂大量登上市场。如1976年,日本厚生省(卫生部)批准的中西药制剂共3994种,其中中药制
The active ingredients in traditional Chinese medicine, according to the origin, collection season, plant parts, processing methods and preservation conditions, etc., and different. The identification of traditional Chinese medicine plants in the past mainly by visual or microscopic observation, that is for morphological identification. These methods still have important value now. However, although the same family plants are morphologically similar, and its chemical composition is not only the amount of differences, and even qualitative differences. This requires a more accurate quantitative analysis. Many famous Chinese prescriptions, such as Mahuang soup, Liushen Wan, Ginseng soup, small Chai Hu Tang, Huanglian Tang, etc., in Southeast Asia, North Korea, Japan are renowned. In recent years, a large number of Japanese herbal preparations boarded the market. For example, in 1976, there were 3,994 kinds of traditional Chinese and western medicine approved by Japan’s Ministry of Health and Welfare (Ministry of Health)