Safety Assessment of Arsenic in Cosmetic Face-creams by Inductively Coupled Plasma Atomic Emission Spectrometer

X. Tan, Hong Cai Liu, Zhuming Wang, Minwu Liu
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引用次数: 2

Abstract

This paper presented the arsenic determination in four different brands of cosmetic face-creams to provide valuable information on the safety levels for consumers. The cosmetic samples were decomposed by acidic digestion method and then taken for arsenic quantification using inductively coupled atomic emission spectrometry (ICP-AES). The digestion efficiency of acid mixtures including concentrated HNO3, HNO3–HClO4, HNO3–H2O2 and aqua regia was discussed in terms of digestion loss and time consumption. The ICP-AES analyzing results, with determination recoveries of 95.4% ~ 105.2% and relative standard deviations less than 3.0% (n = 5), revealed arsenic contents in the face-creams are in the ranges of 0.68 ~ 3.28 mg·kg−1. Obviously, the arsenic contents in some of the studied brands exceed the maximum recommended value of 2.0 mg·kg−1 set by China. These results lead to the conclusion that constant control of arsenic content in cosmetics should be seriously considered. The successful arsenic determination in cosmetic face-creams by digestion pattern of concentrated HNO3, with simplicity, higher efficiency, less reagent consumption and less analytical time well demonstrates the good analytical capability of this method, promising a great possibility for large batches of cosmetic toxic metal monitoring.
电感耦合等离子体原子发射光谱仪评价化妆品面霜中砷的安全性
本文介绍了四种不同品牌化妆品面霜的砷含量测定,为消费者提供有价值的安全水平信息。化妆品样品经酸消化法分解后,采用电感耦合原子发射光谱法(ICP-AES)测定砷含量。从消化损失和时间等方面考察了浓HNO3、HNO3 - hclo4、HNO3 - h2o2和王水混合酸的消化效率。ICP-AES测定回收率为95.4% ~ 105.2%,相对标准偏差小于3.0% (n = 5),样品中砷含量在0.68 ~ 3.28 mg·kg−1之间。很明显,一些被研究品牌的砷含量超过了中国规定的最大推荐值2.0 mg·kg−1。这些结果表明,应重视化妆品中砷含量的持续控制。用浓HNO3消解法成功测定化妆品面霜中的砷,方法简单、效率高、试剂用量少、分析时间短,证明了该方法具有良好的分析能力,为大批量化妆品有毒金属的监测提供了可能。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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