HPLC对多叶棘豆中7个苷类化合物的定量分析

    Quantitative Analysis of Seven Glycosides in Oxytropis Myriophylla by HPLC

    • 摘要: 目的 建立多叶棘豆中7个苷类化合物的定量分析方法。方法 以山奈酚-3-O-β-D-葡萄糖苷、异鼠李素-3-O-β-D-葡萄糖苷、(3R,4R)-4,7-二羟基-2',3'-二甲氧基黄烷-4'-O-β-D-葡萄糖苷、3-羟基苯甲醇-4-O-β-D-葡萄糖苷、6-甲氧基香豆素-7-O-β-D-葡萄糖苷、2-羟基-6-甲氧基苯乙酮-4-O-β-D-葡萄糖苷和苯乙酮-4-O-β-D-葡萄糖苷为评价指标,采用HPLC对不同产地多叶棘豆进行定量分析。色谱柱:Topsil C18(250 mm×4.6 mm,5 μm);流动相:乙腈-水,梯度洗脱;检测波长:261 nm;流速:1.0 mL·min-1;柱温为30℃;进样量为20 μL。结果 7个苷类化合物在一定范围内均具有较好的线性关系(r>0.999 2),其平均回收率分别为96.0%,97.0%,98.7%,96.0%,96.0%,97.7%,98.0%,RSD均<2.0%。被检测成分的含量变化分别为0.192~0.310,0.215~0.325,0.504~0.753,0.128~0.398,0.151~0.217,0.354~0.550,0.132~0.385 mg·g-1结论 本实验所建立的含量测定方法可为综合评价该药材质量提供参考。

       

      Abstract: OBJECTIVE To establish the quantitative analysis method for seven glycosides in Oxytropis myriophylla. METHODS Kaempferol-3-O-β-D-glucoside, isorhamnetin-3-O-β-D-glucoside, (3R,4R)-4,7-hydroxy-2',3'-dimethoxyisoflavane-4'-O-β- D-glucoside, 3-hydroxybenzyl alcohol-4-O-β-D-glucoside, 6-methoxycoumarin-7-O-β-D-glucoside, 2-hydroxy-6-methoxyacetophenone -4-O-β-D-glucoside and acetophenone-4-O-β-D-glucoside was taken as evaluation indexes, the quantitative analysis of Oxytropis myriophylla from different habitats was determined by HPLC. The chromatographic column: Topsil C18(250 mm×4.6 mm, 5 μm). The mobile phase was comprised of acetonitrile and water with a gradient elution. The detection wavelength was 261 nm with flow rate at 1.0 mL·min-1, column temperature at 30 ℃ and injection volume at 20 μL. RESULTS The 7 glycosides all had a good linearity within a certain range(r>0.999 2). The average recoveries were 96.0%, 97.0%, 98.7%, 96.0%, 96.0%, 97.7%, 98.0%, respectively, all of RSDs were<2.0%. Tested compounds and their content change in different samples were 0.192-0.310, 0.215-0.325, 0.504-0.753, 0.128-0.398, 0.151-0.217, 0.354-0.550, 0.132-0.385 mg·g-1, respectively. CONCLUSION The content detection method established in this experiment can provide reference for comprehensive evaluation of the quality of this medicinal material.

       

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