方法采用大鼠在体肠吸收模型，以高效液相色谱法测定循环液中药物的浓度。

METHODS the model of in situ intestinal perfusion was used. A HPLC method was established to determine the drug concentration in the perfusate.

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方法：采用大鼠在体肠循环模型和高效液相色谱法研究白术内酯Ⅰ在大鼠各肠段的吸收特性。

Method: The absorption kinetics was investigated using the method of in situ intestine absorption in rats and the samples were determined by HPLC.

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方法：采用大鼠在体肠灌流模型对淫羊藿苷在大鼠各肠段的吸收特性进行研究。

Methods: to establish the situ intestinal perfusion model and to study the absorption of icariin for various intestinal segments.

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