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作 者:彭贵龙[1] 周光明[1] 秦红英[1] 张丽君[1]
机构地区:[1]西南大学化学化工学院,发光与实时分析教育部重点实验室,重庆400715
出 处:《分析试验室》2014年第6期646-650,共5页Chinese Journal of Analysis Laboratory
基 金:国家自然科学基金项目(21277110)资助
摘 要:建立了高效液相色谱法(HPLC)同时测定24种花中绿原酸、金丝桃苷、槲皮素、木犀草素和异鼠李素含量的方法。采用C18柱(250 mm×4.6 mm,5μm),流动相为甲醇-0.2%冰乙酸溶液梯度洗脱,检测波长350 nm,柱温35℃,流速0.8 mL/min。绿原酸、金丝桃苷、槲皮素、木犀草素和异鼠李素分别在0.0208~104.00μg/mL(r=0.99993),0.017~85.00μg/mL(r=0.99998),0.0172~86.00μg/mL(r=0.99997),0.0304~152.00μg/mL(r=0.99997),0.0168~84.00μg/mL(r=0.99986)范围内与峰面积呈良好的线性关系,平均加标回收率(n=9)92.26%~99.09%,仪器精密度(n=6)RSD均小于3.1%,方法重复性(n=6)的RSD均小于3.6%。方法可同时测定这24种花中绿原酸和黄酮类物质的含量,可作为花中活性成分定量分析的方法。phase was adopted. The UV detective wavelength was 350 nm, and the column temperature was set at 35 ℃. The linear response ranged from 0. 0208 μg/mL to 104. 00 μg/mL for chlorogenic acid ( r = 0. 99993 ), 0. 017μg/mL to 85.00 μg/mL for quercetin 3-D-galactoside ( r = 0. 99998 ), 0. 0172 μg/mL to 86. 00μg/mL for quercetin ( r = 0. 99997 ), 0. 0304 μg/mL to 152.00μg/mL for luteolin ( r = 0. 99997 ), 0. 0168μg/mL to 84.00μg/mL for isorhamnetin ( r = 0. 99986 ), respectively ( n = 6 ). The recoveries ( n = 9 ) of five active components were 92. 26% - 99.09 %. All of RSDs of precision ( n = 6) and repeatability ( n = 6) were less than 3.1% and 3.6%. The contents of chlorogenic acid and flavonoids in the twenty-four flowers were determined by HPLC, and the validation data demonstrated that the method could be used for quantitative determination of the five active components in the flowers.
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