摘要
目的建立泽泻药材饮片的鉴别方法。方法采用高效液相色谱-蒸发光散射检测法(HPLC-ELSD),色谱柱:Macherey-NagelC18柱(250mm×4mm,10μm);柱温:室温;流动相:乙腈-水(4∶1);流速:0.5mL/min;ELSD气体流速:2.25L/min;漂移管温度:70℃。结果在地道的建泽泻饮片中,含有泽泻醇A24-乙酸酯和泽泻醇B23-乙酸酯;市售泽泻饮片中,只含有泽泻醇A24-乙酸酯;而泽泻对照药材中,只含有泽泻醇B23-乙酸酯。该法可清楚区分地道建泽泻饮片、泽泻对照药材和市售泽泻药材饮片。结论该法简单易行,是鉴别泽泻药材饮片有效、实用的检测方法。
Objective To establish a method for the identification of Rhizoma Alismatis. Methods HPLC combined with evaporation light scattering detector(ELSD) was applied. Chromatographic column was Macherey-Nagel C18(250 mm×4 mm,10 μm),acetonitrile -water (4 ∶1) used as mobile phase,flow rate 0.5 mL/min,gas flow rate of ELSD 2.25 L/min and the temperature of drift tube at 70 ℃. Results In the extraction of the authentic Rhizoma Alismatis,both alisol A24-acetate and alisol B23-acetate could be estimated;in the extraction of Rhizoma Alismatis from the market,the alisol A24-acetate could be estimated only;and only alisol B23-acetate could be estimated in the extraction of the standard powder of Rhizoma Alismatis. Conclusion The method is efficient,practical and easy to operate for detecting and identifying Rhizoma Alismatis.
出处
《中药新药与临床药理》
CAS
CSCD
2003年第4期254-255,共2页
Traditional Chinese Drug Research and Clinical Pharmacology
基金
广东省教育厅基金课题(编号粤教科200172)
