建立了化妆品中欧前胡素和异欧前胡素的高效液相色谱-串联质谱(HPLC-MS/MS)测定与确证方法.样品经甲醇提取,以C<,18>柱为分离柱,10 mmol/L乙酸铵/甲醇溶液-5 mmol/L乙酸铵水溶液(80:20,v/v)为流动相分离,采用电喷雾串联四极杆质谱进行检测.欧前胡素和异欧前胡素在0.25～20 μg/L内线性良好(相关系数大于0.999);方法定量限(LOQ)为0.50 mg/kg.在0.50～10.0 mg/kg内,欧前胡素和异欧前胡素的回收率范围分别为82.2%～105%和80.0%～103%.相对标准偏差分别为2.7%～4.9%和1.896～4.6%.该方法能够满足化妆品中欧前胡素和异欧前胡素检测的需要.
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