HPLC法同时测定锦灯笼果实中5种成分及等级鉴定

目的建立HPLC同时定量测定锦灯笼果实中木犀草苷、木犀草素、酸浆苦素A、酸浆苦素P和酸浆苦素O的方法并选择分级标准的测试成分。方法利用Agilent TC-18(4.6 mm×150 mm,5μm)色谱柱分离,乙腈-0.2%磷酸进行梯度洗脱,体积流量为1.0 mL/min,切换波长,0～24 min(350 nm),24～37 min(220 nm)。结果木犀草苷、木犀草素、酸浆苦素A、酸浆苦素P、酸浆苦素O分别在0.052～0.26μg/mL(r=0.999 5),0.04～0.2μg/mL(r=0.999 5),0.048～0.24μg/mL(r=0.999 6),0.04～0.2μg/mL(r=0.999 7),和0.36～1.8μg/mL(r=0.999 7)范围内线性关系良好,平均回收率大于98%。结论由于木犀草素、酸浆苦素P和O含有量过低,故以木犀草苷和酸浆苦素A为分级标准的测试成分是合理的。

Simultaneous determination of five components in Physalis calyx seu Fructus by HPLC