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中文摘要：
目的考察枇杷叶紫珠中主要苯乙醇苷类成分毛蕊花糖苷的肠吸收特性。方法采用离体外翻肠囊法研究枇杷叶紫珠中毛蕊花糖苷在不同肠段、不同质量浓度下的肠吸收速度和程度,采用UPLC-UVD测定样品浓度,计算其单位肠囊面积累计吸收量（Q）和吸收速率常数（Ka）。结果随着毛蕊花糖苷浓度的增加,肠吸收速率常数呈线性增加;各个肠段的吸收速率以十二指肠为最大,回肠为最小。结论毛蕊花糖苷在大鼠整个肠道均有吸收,不存在肠段差异性;推测其吸收机制可能为被动扩散。
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