扭肚藤UPLC指纹图谱建立及2种成分测定

摘要

AIM To establish the UPLC fingerprints of Jasminum elongatum (Bergium) Wild.and to determine the contents of isochlorogenic acid B and ethylcaffeate.METHODS The analysis of methanol extract of J.elongatum was developed on a 25 ℃ thermostatic Agilent Ecplise XDB-C18 column (2.1 mm × 100 mm,1.7 μm),with the mobile phase comprising of acetonitrile-0.1％ methanoic acid flowing at 0.5 mL/min in a gradient elution manner,and the detection wavelength was set at 260 nm.RESULTS There were eighteen common peaks in the fingerprints of ten batches of samples,with the similarities of more than 0.85.Isochlorogenic acid B and ethylcaffeate showed good linear relationships within the ranges of 7.67-38.35 μg/mL (R2 =0.999 4),9.60-96.0 μg/mL (R2 =0.999 7),whose average recoveries were 98.61％,99.09％ with the RSDs of 0.84％,1.25％,respectively.CONCLUSION This stable and reliable method can be used for the quality control of J.elongatum.%目的 建立扭肚藤Jasminum elongatum (Bergium) Wild.UPLC指纹图谱,并测定异绿原酸B和咖啡酸甲酯的含有量.方法 扭肚藤甲醇提取物的分析采用Agilent Ecplise XDB-C18色谱柱(2.1 mm×100 mm,1.7 μm);乙腈-0.1％甲酸为流动相,梯度洗脱;体积流量0.5 mL/min;柱温25℃;检测波长260 nm.结果 10批样品指纹图谱中有18个共有峰,相似度均大于0.85.异绿原酸B和咖啡酸甲酯分别在7.67 ～ 38.35μg/mL(R2=0.999 4)和9.60～96.0 μg/mL(R2 =0.999 7)范围内线性关系良好,平均加样回收率分别为98.61％、99.09％,RSD分别为0.84％、1.25％.结论 该方法稳定可靠,可用于扭肚藤的质量控制.