液相色谱-串联质谱法测定化妆品中的氯倍他索、倍氯米松和氯倍他索丙酸酯

Chinese Journal of Health Laboratory Technology(2015)

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Abstract
目的 建立化妆品中氯倍他索、倍氯米松和氯倍他索丙酸酯3种糖皮质激素的液相色谱-串联质谱测定方法.方法 水剂类、膏霜类化妆品样品用甲醇超声提取,提取液经Oasis HLB固相萃取柱净化,洗脱液以Waters XBridge C18色谱柱(150 mm×2.1 mm,3.5 μm)进行分离,电喷雾离子化,串联四极杆质谱多反应监测模式进行检测,外标法定量.结果 3种糖皮质激素在1 ng/ml~100 ng/ml时线性关系良好.3种糖皮质激素的平均加标回收率为80.5%~ 104.5%,相对标准偏差为1.45%~9.86%,定量限均为0.1 μg,/g.结论 该方法快速简便、灵敏可靠、分析时间短,可满足实际样品的检测需要.
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Key words
Cosmetics,Clobetasol,Beclomethasone,Clobetasol propionate,Solid-phase extraction,Liquid chromatography-tandem mass spectrometry
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