建立了中空纤维膜液相微萃取-高效液相色谱(HPLC)测定醋酸氯己定痔疮栓中醋酸氯己定含量的方法.将样品用醋酸水溶液萃取5次,配成样品溶液,然后用装有正辛醇的中空纤维膜进行液相微萃取,萃取液用高效液相色谱测定.醋酸氯己定的质量浓度为0.5 ～ 16 mg/L时与其峰面积呈良好的线性关系,加样回收率大于98.0%,相对标准偏差低于4.0%.该方法样品处理简单、快速,灵敏度与不经过液相微萃取的HPLC方法相比提高了约24倍,醋酸氯己定痔疮栓中的其他物质对测定无干扰.
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