A method was developed to quickly determine hesperidin and naringin in Fructus Aurantii Immaturus and Fructus Aurantiiby capillary electrophoresis. Through the investigation of the effects of buffer pH and concentration, applied voltage, organic solvent, SDSconcentration and β-CD, the analytical conditions were optimized. Under the optimized conditions, the two analytes were well separatedin 5 min. A good linear relationship between the peak area and concentration was found in the 6-500 μg/mL and 5-500 μg/mLconcentration range for hesperidin and naringin, respectively. The relative standard deviation based on migration time and peak area were0.82%、1.16% and 2.95%、3.08% for hesperidin and naringin, respectively. The detection limits based on three time noise were 1.2μg/mL and 1.5μg/mL for hesperidin and naringin, respectively. The method was verified by real sample analysis and runningstandard addition and recovery experiments with satisfactory results.
A method was developed to determine acacetin, luteolin and quercetin in Chrysanthem indicum L by β-CD modifiedcapillary electrophoresis. Through the investigation of the effects of buffer pH and concentration, applied voltage, SDS concentration andβ-CD, the analytical conditions were optimized. Under the optimized conditions, the two analytes were well separated in 8 min. A goodlinear relationship between the peak area and concentration was found in the 2-400μg/mL,2-500 μg/mL and 2-500μg/mLconcentration range for acacetin, luteolin and quercetin, respectively. The relative standard deviation based on migration time and peakarea were 0.51%, 0.76%, 0.83% and 2.17%, 2.42%, 2.68% for acacetin, luteolin and quercetin, respectively. The detection limits basedon three time noise were 0.6μg/mL, 0.5μg/mL and 0.6μg/mL for acacetin, luteolin and quercetin, respectively. The method wasverified by real sample analysis and running standard addition and recovery experiments with satisfactory results.
