Determination of mercury in cosmetics by microwave digestion-cold atomic absorption spectrometry
Chunji Dai, Wenbin Dong, Liang Xi-ai, Miao Xiao-jie
Abstract
Chunji Dai, Wenbin Dong, Liang Xi-ai, Miao Xiao-jie
Abstract
In this paper, a method of microwave digestion followed by cold atomic absorption spectrometry for the determination of mercury in cosmetics was developed. Microwave digestion conditions and operational conditions of cold atomic absorption spectrometry were optimized. The characteristic concentration is 0.000 25g/mL ,the RSD is 2.01%, the recovery is from 98% to 102%. The method is simple,fast and accurate, the result is satisfied.
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In this paper, a method of microwave digestion followed by cold atomic absorption spectrometry for the determination of mercury in cosmetics was developed. Microwave digestion conditions and operational conditions of cold atomic absorption spectrometry were optimized. The characteristic concentration is 0.000 25g/mL ,the RSD is 2.01%, the recovery is from 98% to 102%. The method is simple,fast and accurate, the result is satisfied.
Key concepts: Microwave digestion, Atomic absorption spectroscopy, Mercury (programming language), Microwave, Chemistry, Mass spectrometry, Cosmetics, Digestion (alchemy)