HPLC-ELSD法同时测定复方小酸枣咀嚼片中4种指标性成分的含量
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篇名: HPLC-ELSD法同时测定复方小酸枣咀嚼片中4种指标性成分的含量
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摘要: 目的:建立同时测定复方小酸枣咀嚼片中4种指标性成分含量的方法。方法:采用高效液相色谱-蒸发光散射法。色谱柱为Grace Brava C18-BDS,流动相为乙腈-水(梯度洗脱),流速为1.0 mL/min,柱温为25 ℃,进样量为20 μL,漂移管温度为100 ℃,载气流速为2.9 L/min。结果:白桦脂酸、白桦脂醇、茯苓酸、甘草酸检测质量浓度线性范围分别为44.50~890.0 μg/mL (r=0.999 3)、20.28~405.6 μg/mL(r=0.999 7)、20.50~656.0 μg/mL(r=0.999 7)、10.50~336.0 μg/mL(r=0.999 6);精密度、稳定性、重复性试验的RSD<3.0%;加样回收率分别为99.44%~101.12%(RSD=0.57%,n=6)、99.41%~100.39%(RSD=0.34%,n=6)、99.31%~100.46%(RSD=0.51%,n=6)、98.96%~101.19%(RSD=0.84%,n=6)。结论:该方法操作简便,精密度、稳定性、重复性较好,可用于复方小酸枣咀嚼片中4种指标性成分含量的同时测定。
ABSTRACT: OBJECTIVE: To establish the method for the content determination of 4 active components in Compound xiaosuanzao chewable tablets. METHODS: HPLC-ELSD method was adopted. The determination was performed on a Grace Brava C18-BDS column with mobile phase consisted of acetonitrile-water (gradient elution) at the flow rate of 1.0 mL/min. The column temperature was 25 ℃, and sample size was 20 μL. The drift tube temperature is 100 ℃, and the carrier gas flow rate is 2.9 L/min. RESULTS: The linear ranges of betulic acid, betulinol, pachymic acid and glycyrrhizic acid were 44.50-890.0 μg/mL(r=0.999 3), 20.28-405.6 μg/mL (r=0.999 7), 20.50-656.0 μg/mL(r=0.999 7) and 10.50-336.0 μg/mL(r=0.999 6), respectively. RSDs of precision, stability and reproducibility were all lower than 3.0%. The recoveries were 99.44%-101.12%(RSD=0.57%,n=6), 99.41%-100.39%(RSD=0.34%,n=6), 99.31%-100.46%(RSD=0.51%,n=6), 98.96%-101.19%(RSD=0.84%,n=6), respectively. CONCLUSIONS: The method is simple, precise, stable and reproducible, and can be used for simultaneous determination of 4 active components in Compound xiaosuanzao chewable tablets.
期刊: 2017年第28卷第30期
作者: 张立峰,刘灿仿,张东平,陈亚,卫茹,褚燕
AUTHORS: ZHANG Lifeng,LIU Canfang,ZHANG Dongping,CHEN Ya,WEI Ru,CHU Yan
关键字: 高效液相色谱-蒸发光散射法;复方小酸枣咀嚼片;白桦脂酸;白桦脂醇;茯苓酸;甘草酸
KEYWORDS: HPLC-ELSD; Compound xiaosuanzao chewable tablets; Betulic acid; Betulinol; Pachymic acid; Glycyrrhizic acid
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