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首页> 外文期刊>International Journal of Environmental Research and Public Health >Application of Solid Phase Extraction on Multiwalled Carbon Nanotubes of Some Heavy Metal Ions to Analysis of Skin Whitening Cosmetics Using ICP-AES
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Application of Solid Phase Extraction on Multiwalled Carbon Nanotubes of Some Heavy Metal Ions to Analysis of Skin Whitening Cosmetics Using ICP-AES

机译：用ICP-AES施用固相萃取对一些重金属离子的多壁碳纳米管分析皮肤美白化妆品的应用

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摘要

A novel and highly sensitive method for the determination of some heavy metals in skin whitening cosmetics creams using multiwalled carbon nanotubes MWCNTs as solid phase extraction sorbent for the preconcentration of these heavy metals prior to their determination by inductively coupled plasma atomic emission spectrometry is described. Different practical parameters have been thoroughly investigated and the optimum experimental conditions were employed. The developed method was then applied for the determination of arsenic, bismuth, cadmium, mercury, lead and titanium in samples of skin whitening cosmetics. The detection limits under these conditions for As, Bi, Cd, Pb, Hg and Ti were 2.4, 4.08, 0.3, 2.1, 1.8, and 1.8 ng·mL?1, respectively. The relative standard deviations (RSDs) were found to be less than 2.0%. For validation, a certified reference material of NIST SRM 1570a spinach leaves was analyzed and the determined values were in good agreement with the certified values. The recoveries for spiked samples were found to be in the range of 89.6–104.4%.
机译：描述了使用多壁碳纳米管MWCNTS在通过电感耦合等离子体原子发射光谱法测定之前，使用多壁碳纳米管MWCNTS测定皮肤美白化妆品乳膏中一些重金属中的一些重金属的一种新的和高敏感的方法。已经彻底研究了不同的实际参数，采用了最佳的实验条件。然后将研制方法应用于皮肤美白化妆品样品中的砷，铋，镉，汞，铅和钛的测定。在这些条件下的检测限率为As，Bi，Cd，Pb，Hg和Ti，分别为2.4,4.08,0.3,2.1,1.8和1.8ng·ml→1。发现相对标准偏差（RSD）被发现小于2.0％。对于验证，分析了NIST SRM 1570A菠菜叶的认证参考资料，并确定了确定的值与认证价值吻合良好。发现尖刺样品的回收率在89.6-104.4％的范围内。

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