目的 研究中药益胆片中绿原酸的定量方法。 方法 样品用甲醇提取，蒸干甲醇后加水使溶解，氯仿脱脂，用10%枸橼酸调Ph1.5～2.0，用醋酸乙酯提取，点样于硅胶G薄层板上，以醋酸乙酯-丙酮-甲酸-水(5∶1∶1∶1)展开，用CS930溥层扫描仪在λs=330 nm,Λr=210 nm下扫描测定。结果 本法的平均回收率为95.97%,RSD为2.77%。结论 结果显示该方法灵敏、准确、专属性强，可用于本制剂的含量测定及质量控制。

OBJECTIVE To study a method for the determination of chlorogenic acid in Yidan tablets. METHODS The tablets were extracted with methyl.The extract was evaporated to dry,and then dissolved in water.The water solution was defatted with chloroform and adjusted to pH1.5～2.0 with 10% citric acid,and then extracted with ethyl acetate.The sample was applied on a silica gel G plate and developed at room temperature.With ethylacetate-acetone-formicacid-water (5∶1∶1∶1),the seperated spots were scanned by CS-930 at λs=330 nm,λR=210 nm. RESULTS The analytical recovery was 95.97% and RSD was 2.77%. CONCLUSION The results showed that this assay was sensitive,accurate and specific.