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在美国,银杏制剂作为植物膳食补充剂,其销售居前十位,质量标准要求其含黄酮22％-27％、萜烯内酯6％。本次采用HPLC-UV和高效液相色谱-蒸发光散射检测器(HPLC-ELSD)对美国市售的9种银杏制剂中的黄酮类和萜烯内酯化合物进行了分析。 材料和方法:①样品溶液的制备:取不同剂型
In the United States, Ginkgo biloba as a plant dietary supplement ranks among the top ten in terms of sales. Quality standards require that it contain 22%-27% of flavonoids and 6% of terpene lactones. HPLC-EL and high performance liquid chromatography-evaporative light scattering detector (HPLC-ELSD) were used to analyze the flavonoids and terpene lactone compounds in nine commercial Ginkgo biloba preparations in the United States. Materials and Methods: 1 Preparation of sample solution: take different dosage forms