建立了以氰基正相色谱柱反相条件下快速分析腺苷和虫草素的方法.以微波辅助提取蛹虫草及其培养残基样品,每次提取1.5 min,共提取2次.采用Eclipse XDB-CN色谱柱测定提取液中腺苷和虫草素的含量,以甲醇-水(7:93,v/v)为流动相进行等度洗脱,检测波长260 nm,并考察和分析了影响分离性能的流动相组成和pH值.结果腺苷和虫草素在4.5 min内实现完全分离且无基质干扰.腺苷和虫草素在线性范围内线性关系良好,线性相关系数,分别为0.999 8和0.999 5,定量限(以10倍信噪比计)分别为0.21 mg/L(腺苷)和0.083 mg/L(虫草素).该方法日内和日间精密度的相对标准偏差(RSD)小于2%;腺苷和虫草素的平均加标回收率为93.896 ~102.9%,RSD值不大于3.62%(n=5).本方法简便、快速、准确、成本低,可用于冬虫夏草、蛹虫草子实体、虫草培养残基及虫草制剂中腺苷和虫草素含量的快速测定.
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