HPLC双波长切换法同时测定仙桃草中木犀草素、芹菜素、金圣草素的含量
2023-06-07周倩倩沈振王兆昆张加余汪冰林永强
周倩倩 沈振 王兆昆 张加余 汪冰 林永强



【摘 要】 目的:测定仙桃草中木犀草素、芹菜素、金圣草素等3种黄酮类成分的含量。方法:以甲醇提取制备分析样品,采用纳谱ChromeCore C18色谱柱(5 μm,4.6 mm×250 mm),以乙腈-0.1%磷酸溶液(23:77)为流动相,流速1 mL/min,检测波长为350 nm(木犀草素、金圣草素)和337 nm(芹菜素),柱温35 ℃。结果:木犀草素、芹菜素、金圣草素在各自范围内线性关系良好(r≥0.9996),平均加样回收率分别为97.79%、98.77%、97.28%,RSD分别为0.94%、0.91%、0.77%。13批样品的木犀草素含量在0.0391~0.7979 mg/g之间,平均值为0.5503 mg/g;芹菜素含量在0.0556~0.2655 mg/g,平均值为0.1938 mg/g;金圣草素含量在0.0575~0.2484 mg/g,平均值为0.1711 mg/g。结论:该方法准确、可靠、重现性好,可用于仙桃草质量控制。
【關键词】 仙桃草;HPLC双波长切换;木犀草素;芹菜素;金圣草素
【中图分类号】R284.1 【文献标志码】 A 【文章编号】1007-8517(2023)08-0045-05
Abstract:Objective To determine the Luteolin,Apigenin and Chrysoeriol from Veronica peregrina L.by HPLC.Methods Samples for analysis were prepared by methanol,the analysis was performed on a 35℃ themostatic Nano ChromeCore C18 column(250 mmx4.6 mm, 5 μm), with the mobile phase comprising of acetonitrile-0.1% phosphoric acid (23∶77) flowing at 1.0 mL/min, and the detection wavelength were set at 350 nm for Luteolin and Chrysoeriol and 337 nm for Apigenin.Results Luteolin,Apigenin and Chrysoeriol show good linear relationships within their own ranges(r≥0.9996), whose average recoveries were 97.79%, 98.77% and 97.28%, with the RSDs of 0.94%, 0.91% and 0.77%, respectively. The contents of the Luteolin, Apigenin and Chrysoeriol of the 13 samples were varied between 0.0391-0.7979 mg/g, 0.0556-0.2655 mg/g and 0.0575-0.2484 mg/g,with the averages of 0.5503 mg/g, 0.1938 mg/g and 0.1711 mg/g, respectively.Conclusion This accurate, reliable and reproducible method can be used for the quality control of Purslane Speedwell.
Key words:Purslane Speedwell; HPLC dual-wavelength method; Luteolin; Apigenin; Chrysoeriol
仙桃草为玄参科植物蚊母草Veronica peregrina L.带虫瘿的干燥全草。虫瘿内的小虫为象虫科昆虫仙桃草直喙象Gymnetron miyoshii Miyoshi。用于吐血、咯血、齟血、便血、跌打损伤,具有活血消肿、止血、止痛的作用[1]。金继曙等[2]从仙桃草中分离出原儿茶酸、香草酸、木犀草素、金圣草素、甘露醇等5种化学成分。课题组研究发现仙桃草中含有芹菜素,并通过对照品定位、紫外吸收扫描、液相色谱-质谱联用进行了确认。目前,仙桃草相关文献报道较少,质量控制相对薄弱,刘华本等[3]、宋光伟等[4]分别对仙桃草中原儿茶酸、木犀草素的含量进行了测定,但金圣草素、芹菜素的测定尚未见文献报道。木犀草素具有较好的促凝血作用[5],芹菜素对肿瘤、衰老及心血管疾病有预防和控制作用[6],金圣草素具有抗菌消炎的作用[7]。为有效……
