Berberine hydrochloride was extracted from rhizoma Coptis with dilute sulphuric acid as solvent by the method of immersion.
以稀硫酸水溶液作溶剂，采用浸渍法从黄连中提取黄连素。
Method biological samples were extracted with the organic solvent and analyzed with GC/MS, Results Haloxyfop-R-methyl in biological samples was detected.
方法应用有机溶剂萃取，GC／MS检验。结果能有效提取、检验生物检材中吡氟氯禾灵（甲酯）。
The flavonoids were extracted with 70% ethanol as the solvent from Abrus cantoniensis with ultrasonic wave and extraction method.
以70%乙醇为溶剂，超声波提取法提取鸡骨草中的黄酮；
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