3种不同基原甘草中4个主要黄酮类化合物的含量分析

被引:42
作者
杨瑞 [1 ]
袁伯川 [1 ]
马永生 [1 ]
周姗 [1 ]
张皓桢 [1 ]
刘靓怡 [1 ]
李文东 [2 ]
刘颖 [1 ]
机构
[1] 北京中医药大学中药学院
[2] 北京市药品检验所
关键词
乌拉尔甘草; 光果甘草; 胀果甘草; 甘草苷; 异甘草苷; 甘草素; 异甘草素; 黄酮类活性成分; 中药多组分测定; 高效液相色谱;
D O I
暂无
中图分类号
R284.1 [化学分析与鉴定];
学科分类号
100804 [中药化学];
摘要
目的:对中国药典规定的3种不同基原甘草样品中甘草苷、异甘草苷、甘草素和异甘草素的含量进行分析比较。方法:以栽培于同一产地的3种不同基原两年生甘草作为实验材料,HPLC法对材料中的甘草苷、异甘草苷、甘草素和异甘草素含量进行测定。采用CAPCELL PAK C18 MGII(4.6 mm×250 mm,5μm)色谱柱,以乙腈(A)-0.1%磷酸溶液(B)为流动相,梯度洗脱,流速为1.0 m L·min-1,检测波长为276 nm(0~13 min,检测甘草苷)、360 nm(13~23 min,检测异甘草苷)、276 nm(23~28 min,检测甘草素)、376 nm(28~55 min,检测异甘草素),柱温为30℃。结果:甘草苷、异甘草苷、甘草素和异甘草素分离良好,线性范围分别为1.15×10-20.230μg(r=1.000)、4.45×10-3~8.90×10-2μg(r=1.000)、1.15×10-3~2.30×10-2μg(r=0.998)、2.27×10-3~4.54×10-2μg(r=1.000),检测限和定量限依次为1.13 ng和3.42 ng、0.896 ng和2.70 ng、0.463 ng和1.39 ng、0.454 ng和1.38 ng。本方法灵敏度、精密度、准确性、重复性、回收率、耐用性均良好。在3种基原的甘草样品中,4个黄酮类成分的含量存在极显著差异(P<0.01),甘草苷、异甘草苷、甘草素、异甘草素在乌拉尔甘草中的含量均最高,分别为(-20.75±0.524)mg·g1、(4.453±0.057)mg·g-1、(0.610±0.019)mg·g-1和(0.272±0.008)mg·g-1,光果甘草次之,含量分别为(6.623±0.405)mg·g-1、(1.562±0.053)mg·g-1、(0.325±0.036)mg·g-1和(0.180±0.012)mg·g-1,胀果甘草最低,含量分别为(2.700±0.232)mg·g-1、(0.821±0.042)mg·g-1、(0.153±0.006)mg·g-1和(0.115±0.005)mg·g-1;甘草苷与异甘草苷、甘草素与异甘草素的含量在3种不同基原甘草样品中均存在极显著相关关系(P<0.01)。结论:本文建立的HPLC方法经方法学验证,可用于甘草中甘草苷、异甘草苷、甘草素和异甘草素的含量分析,并为甘草的质量控制及以黄酮类化合物为目标的优质甘草筛选与定向育种提供科学依据。
引用
收藏
页码:1729 / 1736
页数:8
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