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我国幅员辽阔,植物资源十分丰富,它不仅为人类提供与疾病作斗争的药物,还为国民经济很多领域提供有价值的材料。要充分开发利用植物资源必须进一步发展植物化学,为此,首先要从极复杂的植物成份中分离出纯化学成份加以研究,故分离纯化工作是植物化学研究的起点。我国植物化学家赵承嘏等曾先后从中药延胡索(Corydalis ambigua Chem.et Sch.)中分得十余种生物碱,这种早期的分离方法即所谓经典方法,大多是基于溶解度的不同,采用不同溶剂由低极性到高极性分步提取,用溶剂结晶法加以分
My country is vast and rich in plant resources. It not only provides human beings with medicines that combat disease, but also provides valuable materials for many areas of the national economy. To fully develop and utilize plant resources, it is necessary to further develop phytochemistry. To do this, we must first separate the pure chemical components from the extremely complex plant components and study them. Therefore, separation and purification work is the starting point of phytochemical research. Our plant chemist Zhao Chengtao et al. Have successively divided more than ten kinds of alkaloids from Corydalis ambigua Chem. Et Sch. This early separation method is the so-called classical method, mostly based on the difference in solubility, Different solvents from low polarity to high polarity step extraction, solvent crystallization method to be divided