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目的：对人参、西洋参和桔梗进行蛋白电泳分析。方法：聚丙烯酰胺凝胶电泳。结果：人参、西洋参和桔梗的电泳谱带有明显差异。结论：用该法能够鉴别三种药材，且方法简便，结果可靠。
Objective: Protein electrophoresis analysis of ginseng, American ginseng and Platycodon grandiflorum. Methods: Polyacrylamide gel electrophoresis. RESULTS: The electrophoretic spectra of ginseng, American ginseng and Platycodon grandiflora were significantly different. Conclusion: The method can be used to identify the three herbs, and the method is simple and reliable.