摘要
目的：样品不经前处理,建立化妆品中汞的直接测定方法。方法：采用Milestone DMA-80汞直接分析仪,在适当工作参数条件下,进行汞的直接分析。结果：工作曲线范围（0～700 ng）内,线性良好。样品加标回收率在88.0%～94.5%之间,RSD〈5%,本法中汞的检出限为0.005 ng,定量下限为0.02 ng。结论：该方法准确灵敏、精密度好,适用于化妆品中汞的测定,结果满意。
Objective：To establish a direct mercury analysis method of cosmetic without any further sample preparation.Methods：The analysis was performed from samples with an advanced mercury analytical instrument Milestone DMA-80.Results：Good linearities were obtained in the concentration range of 0～700 ng.The recoveries were in the range of 88.0%～94.5%.RSD〈5%.Detection limit obtained was 0.005 ng.Ditermination limit was 0.02 ng.Conclusion：The method is precise,accurate and sensitive to determine mercury in cosmetic.
出处
《中国卫生检验杂志》
CAS
2009年第3期543-544,559,共3页
Chinese Journal of Health Laboratory Technology
关键词
化妆品
汞
直接测定
Cosmetic
Mercury
Direct analysis
