HPLC法同时测定不同配伍比例三棱-莪术药对中P-香豆酸、阿魏酸的含量
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篇名: | HPLC法同时测定不同配伍比例三棱-莪术药对中P-香豆酸、阿魏酸的含量 |
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摘要: | 目的:建立同时测定三棱-莪术药对中P-香豆酸、阿魏酸含量的方法,探讨不同比例药对中二者含量的变化。方法:采用高效液相色谱法。色谱柱为Agilent 20RBAX XDB-C18,流动相为乙腈-0.1%冰醋酸溶液(梯度洗脱),流速为1.0 mL/min,检测波长为266 nm,柱温为30 ℃,进样量为10 μL。结果:P-香豆酸、阿魏酸检测质量浓度线性范围分别为4.218 6~21.093 μg/mL(r=0.999 8)、1.836 0~9.180 μg/mL(r=0.999 9);精密度、稳定性、重复性试验的RSD<2.0%;加样回收率分别为98.72%~100.30%(RSD=0.18%,n=9)、99.11%~100.45%(RSD=0.46%,n=9)。三棱-莪术药对4个配伍比例(1 ∶ 1、2 ∶ 1、1 ∶ 2、1 ∶ 0,m/m)中,三棱-莪术比例(m/m)为2 ∶ 1时P-香豆酸、阿魏酸含量最高。结论:该方法操作简便,精密度、稳定性、重复性好,可用于三棱-莪术药对中P-香豆酸、阿魏酸含量的同时测定;该药对中三棱-莪术比例(m/m)为2 ∶ 1时主要有效成分含量最高。 |
ABSTRACT: | OBJECTIVE: To establish a method for simultaneous determination of P-coumaric acid and ferulic acid in the couple of Sparganium stoloni and Curcuma aeruginosa, and to investigate rational proportion of the couple. METHODS: HPLC method was adopted. The determination was performed on Agilent 20RBAX XDB-C18 column with mobile phase consisted of acetonitrile-0.1% phosphoric acid (gradient elution) at the flow rate of 1.0 mL/min. The detection wavelength was set at 266 nm, and the column temperature was 30 ℃. The sample size was 10 μL. RESULTS: The linear ranges of P-coumaric acid and ferulic acid were 4.218 6-21.093 μg/ mL(r=0.999 8), 1.836 0-9.180 μg/ mL(r=0.999 9), respectively. RSDs of precision, stability and reproducibility tests were all lower than 2.0%. The recoveries were 98.72%-100.30%(RSD=0.18%,n=9), 99.11%-100.45% (RSD=0.46%,n=9). Among 4 compatibility proportions of the couple of S. stoloni and C. aeruginosa (1 ∶ 1,2 ∶ 1,1 ∶ 2,1 ∶ 0,m/m), the dissolution rate of P-coumaric acid and ferulic acid were the highest when the ratio of S. stoloni-C. aeruginosa (m/m)was 2 ∶ 1. CONCLUSIONS: The method is simple, accurate, stable and reproducible, and can be used for content determination of P-coumaric acid and ferulic acid in the couple of S. stoloni and C. aeruginosa. when the proportion of the couple of S. stoloni and C. aeruginosa is 2 ∶ 1 and the contents of P-coumaric and ferulic acid are the highest,the contents of main etfective components are the highest. |
期刊: | 2017年第28卷第27期 |
作者: | 李洋,季方茹,潘洪秀,宗希明,缪月英,杨铭,丁立新 |
AUTHORS: | LI Yang,JI Fangru,PAN Hongxiu,ZONG Ximing,MIAO Yueying,YANG Ming,DING Lixin |
关键字: | 高效液相色谱法;三棱-莪术;药对;P-香豆酸;阿魏酸;含量测定 |
KEYWORDS: | HPLC; Sparganium stoloni-Curcuma aeruginosa; Couple; P-coumaric acid; Ferulic acid; Content determination |
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