【摘 要】
：
采用衍生方式建立了化妆品中壬二酸的样品处理方法,确立了壬二酸衍生物的气相色谱检测方法。结果表明当衍生剂为硫酸和乙醇、衍生时间为1h、衍生温度为70℃时,壬二酸的衍生效
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采用衍生方式建立了化妆品中壬二酸的样品处理方法,确立了壬二酸衍生物的气相色谱检测方法。结果表明当衍生剂为硫酸和乙醇、衍生时间为1h、衍生温度为70℃时,壬二酸的衍生效果比较好。采用DB-1毛细管色谱柱,升温程序为初温80℃、20℃/min升至300℃后保留3min,壬二酸衍生物能够得到较好分离。用氢火焰离子化检测器检测,外标法定量。壬二酸衍生物在20~1 000mg/L范围内线性关系良好,决定系数r2=0.9996。气相色谱法定性检出限和定量下限分别为50.0和100.0mg/kg,回收率为84.9%~105.8%,RSD<5%。68批次样品检测结果显示:在标称含有壬二酸的2个样品中,仅有1个检出了壬二酸,其质量比为117mg/kg,其余67种样品均未检出壬二酸。
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