HPLC法同时测定痰热清胶囊中7种成分的含量
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篇名: | HPLC法同时测定痰热清胶囊中7种成分的含量 |
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摘要: | 目的:建立同时测定痰热清胶囊中7种成分含量的方法。方法:采用高效液相色谱法。色谱柱为Ultimate XB C18,流动相为乙腈-0.2%甲酸溶液(梯度洗脱),流速为0.8 mL/min,检测波长为325 nm,柱温为35 ℃,进样量为10 μL。结果:绿原酸、异连翘酯苷A、连翘酯苷A、异绿原酸B、异绿原酸A、异绿原酸C和黄芩苷检测进样量线性范围分别为0.025~0.5 μg(r=0.999 6)、0.025~0.5 μg (r=0.999 7)、0.050~1.0 μg(r=0.999 9)、0.025~0.5 μg(r=0.999 7)、0.025~0.5 μg(r=0.999 6)、0.025~0.5 μg(r=0.999 6)和0.750~1.5 μg(r=0.999 9);定量限均≤1.5 ng,检测限均为0.5 ng;精密度、稳定性、重复性试验的RSD<3.0%;加样回收率为95.28%~106.30%(RSD为0.97%~2.14%,n=9)。结论:该方法操作简便,精密度、稳定性、重复性好,可用于痰热清胶囊中7种成分含量的同时测定。 |
ABSTRACT: | OBJECTIVE: To establish a method for the simultaneous determination of 7 components in Tanreqing capsules. METHODS: HPLC method was adopted. The determination was performed on Ultimate XB C18 column with mobile phase consisted of acetonitrile-0.2% formic acid (gradient elution) at a flow rate of 0.8 mL/min. The detection wavelength was set at 325 nm, and column temperature was 35 ℃. The sample size was 10 μL. RESULTS: The linear ranges of chlorogenic acid, isoforsythiaside A, forsythiaside A, isochlorogenic acid B, isochlorogenic acid A, isochlorogenic acid C and baicalin were 0.025-0.5 μg(r=0.999 6), 0.025-0.5 μg (r=0.999 7),0.050-1.0 μg (r=0.999 9),0.025-0.5 μg((r=0.999 7), 0.025-0.5 μg ((r=0.999 6), 0.025-0.5 μg (r=0.999 6), 0.750-1.5 μg(r=0.999 9), respectively. The limit of quantitation was no more than 1.5 ng, and the limit of detection was 0.5 ng. RSDs of precision, stability and reproducibility tests were all lower than 3.0%. The recoveries were 95.28%-106.30% (RSD ranged 0.97%-2.14%,n=9). CONCLUSIONS: The method is simple, precise, stable and reproducible, and can be used for simultaneous determination of 7 components in Tanreqing capsules. |
期刊: | 2017年第28卷第30期 |
作者: | 张振华,钟苹苹,徐英 |
AUTHORS: | ZHANG Zhenhua,ZHONG Pingping,XU Ying |
关键字: | 痰热清胶囊;绿原酸;异连翘酯苷A;连翘酯苷A;异绿原酸;黄芩苷;高效液相色谱法;含量测定 |
KEYWORDS: | Tanreqing capsules; Chlorogenic acid; Isoforsythiaside A; Forsythiaside A; Isochlorogenic acid; Baicalin; HPLC; Content determination |
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