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目的:建立同时测定桑菊感冒颗粒中绿原酸、芦丁、连翘苷、槲皮素和甘草酸含量的方法。方法:采用高效液相色谱法。色谱柱为WondasilTM-C18,流动相为乙腈-0.4%磷酸溶液(梯度洗脱),流速为0.8 mL/min,柱温为30 ℃,检测波长为254 nm,进样量为5 μL。结果:绿原酸、芦丁、连翘苷、槲皮素和甘草酸的检测进样量线性范围分别为0.014~0.560 μg(r=0.999 2)、0.022~0.880 μg(r=0.999 6)、0.010~0.400 μg(r=0.999 9)、0.016~0.640 μg(r=0.999 9)、0.011~0.440 μg(r=0.999 1);定量限分别为0.752、0.647、0.483、0.372、0.242 mg/L,检测限分别为0.253、0.185、0.157、0.162、0.098 mg/L;精密度、稳定性、重复性试验的RSD均小于2.0%;加样回收率分别为 97.4%~100.9%(RSD=1.4%,n=6)、95.7%~99.0%(RSD=1.1%,n=6)、95.1%~98.1%(RSD=1.3%,n=6)、96.4%~99.8%(RSD=1.4%,n=6)、97.8%~100.4%(RSD=1.0%,n=6)。结论:该方法操作简便,精密度、稳定性、重复性好,可用于桑菊感冒颗粒中绿原酸、芦丁、连翘苷、槲皮素和甘草酸含量的同时测定。
OBJECTIVE: To establish a method for the content determination of chlorogenic acid, rutin, phillyrin, quercetin and glycyrrhizic acid in Sangju ganmao granules. METHODS: HPLC method was adopted. The determination was performed on WondasilTM-C18 column with mobile phase consisted of acetonitrile-0.4% phosphoric acid solution (gradient elution) at the flow rate of 0.8 mL/min. The column temperature was set at 30 ℃, and the detection wavelength was set at 254 nm. The sample size was 5 μL. RESULTS: The linear range of chlorogenic acid, rutin, phillyrin, quercetin and glycyrrhizic acid were 0.014-0.560 μg(r=0.999 2),0.022-0.880 μg(r=0.999 6),0.010-0.400 μg(r=0.999 9),0.016-0.640 μg(r=0.999 9),0.011-0.440 μg(r=0.999 1), respectively. The limits of quantitation were 0.752, 0.647, 0.483, 0.372, 0.242 mg/L; the limits of detection were 0.253, 0.185, 0.157, 0.162, 0.098 mg/L. RSDs of precision, stability and reproducibility tests were all lower than 2.0%. The average recoveries were 97.4%-100.9%(RSD=1.4%,n=6), 95.7%-99.0%(RSD=1.1%,n=6), 95.1%-98.1%(RSD=1.3%,n=6), 96.4%-99.8%(RSD=1.4%,n=6), 97.8%-100.4%(RSD=1.0%,n=6), respectively. CONCLUSIONS: The method is simple, precise, stable and reproducible, and can be used for simultaneous determination of chlorogenic acid, rutin, phillyrin, quercetin and glycyrrhizic acid in Sangju ganmao granules.
桑菊感冒颗粒高效液相色谱法绿原酸芦丁连翘苷槲皮素甘草酸含量测定
Sangju gamao granulesHPLCChlorogenic acidRutinPhillyrinQuercetinGlycyrrhizic acidContent determination
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