应用RP-HPLC法测定野山杏果肉黄酮类化合物

Determination of Flavonoids in Wild Apricot Flesh by RP-HPLC

  • 摘要:目的 】分析测定新疆野山杏果肉中4种黄酮类化合物(原花青素、芦丁、柚皮苷二氢查尔酮、槲皮素)。【 方法 】运用高效液相色谱分析方法,采用Hubble C18(4.6 mm×250 mm,5 μm)色谱柱,流动相A(甲醇): B(0.5%磷酸水溶液)= 45∶55,在1.0 mL/min流速下等度洗脱,分离新疆野山杏果肉中4种黄酮类化合物,采用仪器精密度、稳定性、重复性及添加回收率验证该方法。【 结果 】原花青素、芦丁、槲皮素3种黄酮成分色谱峰在20 min内分离度良好,线性范围为0.52~56 μg/mL(r = 0.999 8~1),加样回收率为92.13%~96.70%,RSD为0.89%~1.96%;原花青素含量为7.325 mg/kg,芦丁含量为0.630 mg/kg,槲皮素含量为0.009 58 mg/kg,柚皮苷二氢查尔酮在该条件下未检出。【 结论 】高效液相色谱(RP-HPLC)简便、快速、准确、稳定性及重复性好,适用于新疆野山杏果肉中芦丁等3种黄酮类化合物的分离测定。

     

    Abstract:Objective 】 To establish a method for simultaneous determination of four flavonoids (proanthocyanidins, rutin, naringin dihydrochalcone and quercetin) in the sarcocarp of Xinjiang wild apricot by high performance liquid chromatography.【 Method 】 Four flavonoids from Xinjiang wild apricot sarcocarp were separated by Hubble C18 (4.6 mm ×250 mm, 5 m) column, mobile phase A (methanol)∶ B (0.5% phosphoric acid solution) = 45∶55, elution at a flow rate of 1.0 mL/min. The method was validated by instrument precision, stability, repeatability and recovery.【 Result 】 The chromatographic peaks of proanthocyanidin, rutin and quercetin were well separated within 20 minutes. The linear range was 0.52-56 g/mL (r = 0.999,8-1). The recovery was 92.13%-96.70% and RSD was 0.89%-1.96%. The content of proanthocyanidins, rutin and quercetin were 7.325 mg/kg, 0.630 mg/kg and 0.009,58 mg/kg respectively. Naringin dihydrochalcone was not detected under this condition.【 Conclusion 】 The method is simple, rapid, accurate, stable and reproducible. It is suitable for the separation and determination of three flavonoids in Xinjiang wild apricot flesh.

     

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