摘要
目的：研究X-射线荧光元素分析技术快速检测膏状化妆品中汞的检测方法。方法：用一种不含汞的膏状化妆品作为空白基质,配制出一系列含不同浓度汞的标准样品,直接测定,建立膏状基质的标准曲线,再测定多种相似基质的化妆品。结果：汞含量在5~100 mg·kg-1范围内线性关系良好,Y=1.1297X＋0.7091,r=0.9985;精密度试验的RSD（n=6）在4.1%~5.3%范围内;回收率范围在95.5%~105.2%之间;检出限为5 mg·kg-1。结论：本方法适用于基质相似的多种化妆品中汞含量的检测,X-射线荧光元素分析技术可以快速检测膏状化妆品中汞含量。
Objective： To study the method of rapid detection of mercury in the paste cosmetics by technology of elemental analysis with X- ray fluorescence. Methods： Paste cosmetics that did not contain mercury were used as the blank matrix to prepare a series of samples containing different concentrations of mercury which were determined directly. A standard curve of the paste matrix was established and then a variety of similar matrix cosmetics were determined. Results： The linear range was 5- 100 mg·kg- 1,Y =1.1297 X ＋0. 7091,r =0. 9985; RSD（ n =6） of the precision test was 4. 1%- 5. 3%. The recovery（ n = 6） was 95. 5%- 105. 2%. The detection limit was 5 mg·kg- 1. Conclusion： This method is suitable for the detection of mercury content in the matrix similar to a variety of cosmetics; the technology of elemental analysis by X- ray fluorescence can quickly detect the mercury content in the paste cosmetics.
出处
《药物分析杂志》
CAS
CSCD
北大核心
2014年第8期1470-1474,共5页
Chinese Journal of Pharmaceutical Analysis
基金
保健食品中违禁物质检测技术研究(编号:2011BAZ02015-2)
中国食品药品检定研究院中青年基金课题(编号:2012A14)
关键词
X-射线荧光
不同基质
化妆品检测
重金属
快速检测
汞含量测定
X-ray fluorescence
different matrix
cosmetic testing
heavy metals
rapid detection
mercury content assay
