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Development of Semi. quantitative Solid Sampling Mercury Analyzer for Cosmetics

文献类型： 外文期刊

作者： Wang Bo 1 ; Liu Ji-Xin 2 ; Zhang Xiao-Hong 3 ; Mao Xue-Fei 2 ; Ding Lan 1 ; Na Xing 4 ;

作者机构： 1.Jilin Univ, Coll Chem, Changchun 130000, Jilin, Peoples R China

2.Chinese Acad Agr Sci, Inst Qual Stand & Testing Technol Agroprod, Beijing 100081, Peoples R China

3.Beijing Peking Univ, Pioneer Technol Co Ltd, Beijing 100871, Peoples R China

4.Beijing Abil Tech Co Ltd, Beijing 100081, Peoples R China

关键词： Solid sampling; Semi-quantitative test; Cosmetics; Mercury; Chromogenic reaction

期刊名称：CHINESE JOURNAL OF ANALYTICAL CHEMISTRY （ 影响因子：1.134； 五年影响因子：0.909 ）

ISSN： 0253-3820

年卷期： 2018 年 46 卷 7 期

页码：

收录情况： SCI

摘要： On the basis of the chromogenic reaction between Hg and Cul, a semi-quantitative solid sampling Hg analyzer comprising the catalytic furance, Hg testing tube, air pump and smart cellphone was developed. White carrier 101 was chosen as the adsorbent for CuI to react with Hg from the catalytic furnace. The established Hg analyzer can not only visually recognize the coloration when Hg exceeding the limit standard, but also semi-quantitatively detect the Hg content in cosmetics fast using a smart cellphone and RGB analysis software, after direct solid sampling introduction of cosmetics sample. The instrumental detection limit ( LOD) of mercury was 50 ng, the linearity ranged from 50 ng to 2500 ng, the linear regression coefficient ( R2) was higher than 0. 97, and the RSD of the corresponding RGB values was 6% ( n=11). Nine real cosmetics samples were measured by the established method, whose relative differences of Hg contents with that by the standard method ( Safety Technical Specification for Cosmetics, 2015 edition) were less than 10%. The whole analytical time can be controlled within 5 min. The established instrumental method is simple, fast, accurate and visual, and extremely suitable to fast and on-site monitoring of Hg in cosmetics samples.

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