双波长HPLC法同时测定板柴口服液中(R,S)-告依春和绿原酸的含量
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篇名: | 双波长HPLC法同时测定板柴口服液中(R,S)-告依春和绿原酸的含量 |
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摘要: | 目的:建立同时测定板柴口服液中(R,S)-告依春和绿原酸含量的方法。方法:采用双波长高效液相色谱法。色谱柱为Wondasil C18,流动相为乙腈-0.1%磷酸溶液(11 ∶ 89,V/V),流速为1.0 mL/min,检测波长为245 nm[(R,S)-告依春]、327 nm(绿原酸),柱温为30 ℃,进样量为10 μL。结果:(R,S)-告依春和绿原酸检测质量浓度线性范围分别为4.05~40.51 μg/mL(r=0.999 9)、29.41~294.05 μg/mL(r=0.999 9);定量限分别为3.32、2.45 ng,检测限分别为1.00、0.74 ng;精密度、稳定性、重复性试验的RSD均<1.0%;加样回收率分别为98.46%~101.06%(RSD=0.98%,n=9)、98.18%~100.78% (RSD=0.86%,n=9)。结论:该方法操作简便,结果准确、灵敏度高、重复性好,可用于板柴口服液中(R,S)-告依春和绿原酸含量的同时测定。 |
ABSTRACT: | OBJECTIVE: To establish a method for simultaneous determination of (R,S)-goitrin and chlorogenic acid in Banchai oral liquid. METHODS: The dual-wavelength HPLC method was adopted. The determination was performed on Wondasil C18 column with mobile phase consisted of acetonitrile-0.1% phosphoric acid (11 ∶ 89,V/V) at the flow rate of 1.0 mL/min. The detection wavelengths were 245 nm for (R,S)-goitrin and 327 nm for chlorogenic acid. The column temperature was 30 ℃, and injection volume was 10 μL. RESULTS: The linear ranges were 4.05-40.51 μg/mL for (R,S)-goitrin (r=0.999 9), 29.41-294.05 μg/mL for chlorogenic acid (r=0.999 9). The limits of quantification were 3.32, 2.45 ng, limits of detection were 1.00, 0.74 ng. RSDs of precision, stability and reproducibility tests were lower than 1.0%; the recoveries were 98.46%-101.06% (RSD=0.98%,n=9) and 98.18%-100.78%(RSD=0.86%,n=9). CONCLUSIONS: The method is simple, accurate, sensitive and reproducible, and can be used for simultaneous determination of (R,S)-goitrin and chlorogenic acid in Banchai oral liquid. |
期刊: | 2017年第28卷第27期 |
作者: | 华之卉,刘栋,李明春 |
AUTHORS: | HUA Zhihui,LIU Dong,LI Mingchun |
关键字: | 板柴口服液;(R,S)-告依春;绿原酸;含量测定;双波长高效液相色谱法 |
KEYWORDS: | Banchai oral liquid; (R,S)-goitrin; Chlorogenic acid; Content determination; Dual-wavelength HPLC |
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