The approach of high performance liquid chromatography-diode array detector(HPLC-DAD)was established to determine luteolin in Duyiwei capsules:HPLC is performed on a BDS HYPERSIL C18 column(4.6 mm×250 mm,5 μm),methanol 0.1 wt%phosphoric acid(50∶50,V∶V)is adopted as mobile phase,the flow rate is 1.0 mL/min,the column temperature is 35℃and the detection wavelength is 350 nm.The results showed that luteolin has a good linearity in the range of 0.1~100 μmol/L.The recoveries of this method were 97.67%~105.77%with a relative standard deviation(RSD)less than 3%at three standard solution concentrations of 1.0,5.0 and 10 μmol/L.The average content of luteolin in duyiwei capsule was 78.43 μg/g.This HPLC-DAD method is convenient,feasible,sensitive and stable so that it can be used for the content determination and quality control of luteolin in duyiwei capsule.
关键词
高效液相色谱-二极管阵列检测器(HPLC)/木犀草素/独一味/条件优化
Key words
high performance liquid chromatography-diode array detector(HPLC-DAD)/luteolin/duyiwei/condition optimizing/content determination