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中药化学成分的研究工作，由对中药组织细胞内的目标化合物进行分离开始，分离工作是逐步进行的，最初一步常称为提取（多用溶剂浸取），后面的继续分离工作常称分离或纯化。得到的产品再经鉴定获知是否为目标物。若产品为未知单一化合物，则要进行结构测定。过去研究中药化学
The research work on the chemical constituents of traditional Chinese medicine begins with the separation of the target compounds within the cells of traditional Chinese medicine organizations. The separation work is gradually carried out. The first step is often called extraction (multiple solvent extraction), and the subsequent separation work is often referred to as separation or purification. . The resulting product is then identified to determine whether it is the target. If the product is an unknown single compound, the structure is determined. Past research on traditional Chinese medicine chemistry