摘要
目的:建立HPLC-DAD波长切换法同时测定加味四妙颗粒中延胡索乙素、盐酸小檗碱、盐酸黄柏碱、木兰花碱、杯苋甾酮、甘草苷、甘草次酸共7个成分的含量。方法:采用Insert Sustain C_(18)色谱柱(250 mm×4.6 mm,5μm),以乙腈(A)-0.05 mol·L~(-1)磷酸二氢钾(B)为流动相,梯度洗脱,DAD检测器,检测波长268 nm(0~22.5 min,检测木兰花碱,67~71 min,检测盐酸小檗碱)、280 nm(22.5~30 min,检测延胡索乙素)、237 nm(30~45 min,检测甘草苷)、247 nm(45~55 min,检测杯苋甾酮,71~85 min,检测甘草次酸)、284 nm(55~67 min,检测盐酸黄柏碱)。结果:各待测组分分离度良好;延胡索乙素、盐酸小檗碱、盐酸黄柏碱、木兰花碱、杯苋甾酮、甘草苷、甘草次酸7个成分的进样质量浓度分别在2.060~51.49μg·mL~(-1)(r=1.000)、3.111~77.77μg·mL~(-1)(r=1.000)、1.813~45.31μg·mL~(-1)(r=1.000)、1.960~49.00μg·mL~(-1)(r=0.999 9)、2.019~50.48μg·mL~(-1)(r=1.000)、2.468~61.70μg·mL~(-1)(r=0.999 9)、2.408~60.20μg·mL~(-1)(r=0.999 9)范围内与各自峰面积呈良好线性关系;平均加样回收率(n=6)分别为100.6%(RSD=1.6%)、100.3%(RSD=0.4%)、101.0%(RSD=1.3%)、100.7%(RSD=0.8%)、100.1%(RSD=1.9%)、101.6%(RSD=1.3%)、99.8%(RSD=1.7%)。结论:本试验建立的含量测定方法符合方法学验证要求,简便可靠,重现性好,可用于加味四妙颗粒的7个指标性成分的同时测定。
Objective:To establish a method for simultaneous determination of 7 active components(tetrahydropalmatine,berberine hydrochloride,phellodendrine chloride,magnoflorine,cyasterone,liquiritin and glycyrrhetinic acid)in Jiawei Simiao particles by HPLC-DAD method with wavelength switching. Methods:The separation was performed on a Insert Sustain C_(18)(250 mm×4.6 mm,5 μm)column. The mobile phase was composed of acetonitrile(A)-0.05 mol·L~(-1) potassium dihydrogen phosphate(B)with gradient elution. The detection wavelength was set at 268 nm(0-22.5 min,detection of magnoflorine,67-71 min,detection of berberine hydrochloride),280 nm(22.5-30 min,detection of tetrahydropalmatine)and 237 nm(30-45 min,detection of liquiritin,247 nm(45-55 min,detection of cyasterone,71-85 min,detection of glycyrrhetinic acid)and 284 nm(55-67 min,detection of phellodendrine chloride). Results:The ingredients could be effectively detected and separated. For tetrahydropalmatine,berberine hydrochloride,phellodendrine chloride,magnoflorine,cyasterone,liquiritin and glycyrrhetinic acid,the linear ranges were 2.060-51.49 μg·mL~(-1)(r=1.000),3.111-77.77 μg·mL~(-1)(r=1.000),1.813-45.31 μg·mL~(-1)(r=1.000),1.960-49.00 μg·mL~(-1)(r=0.999 9),2.019-50.48 μg·mL~(-1)(r=1.000),2.468-61.70 μg·mL~(-1)(r=0.999 9)and 2.408-60.20 μg·mL~(-1)(r=0.999 9),respectively. The average recovery rate(n=6)were 100.6%(RSD=1.6%),100.3%(RSD=0.4%),101.0%(RSD=1.3%),100.7%(RSD=0.8%),100.1%(RSD=1.9%),101.6%(RSD=1.3%)and 99.8%(RSD=1.7%),respectively. Conclusion:The assay method established in this experiment met the requirements of methodological verification. The method was simple,reliable and reproducible. It could be used for simultaneous determination of 7 active components in Jiawei Simiao particles.
引文
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