摘要
A high performance liquid chromatography (HPLC) method was established for simultaneous determina-tion of geniposidic acid, chlorogenic acid and geniposide in eucommia. Detection at 240 nm with a reversed-phasecolumn, CH3OH volume fraction, acidic additive and pH value of mobile phase were studied for their effects on theseparability of the compounds. The most suitable separation was obtained with isocratic gradient elution systemusing CH3OH-H2O-H3 PO4 (12.00: 87.96: 0.04, volume ratio) at a flow-rate of 1.0 mL/min. Under the experi-mental conditions, the capacity factors of three compounds are in 3-13. The sample is separated rightly. Theanalysis time is 30 min and the retention time of genfposidic acid, chlorogenic acid and geniposide are 6. 7 min,10.5 min and 21 min, respectively.
A high performance liquid chromatography ( HPLC) method was established for simultaneous determination of geniposidic acid, chlorogenic acid and geniposide in eucommia. Detection at 240 nm with a reversed-phase column, CH3OH volume fraction, acidic additive and pH value of mobile phase were studied for their effects on the separability of the compounds. The most suitable separation was obtained with isocratic gradient elution system using CH3OH-H2O-H3PO4(12. 00 : 87. 96 : 0. 04, volume ratio) at a flow-rate of 1. 0 mL/min. Under the experimental conditions, the capacity factors of three compounds are in 3-13. The sample is separated rightly. The analysis time is 30 min and the retention time of geniposidic acid, chlorogenic acid and geniposide are 6. 7 min, 10. 5 min and 21 min, respectively.
基金
Project (02JZY3029) supported by the Department of Science and Technology of Hunan Province
Pro-ject (2002-772) supported by the Development Planning Commission of Hunan Province
