Determination of Hg2+ Based on the Selective Enhancement of Peroxidase Mimetic Activity of Hollow Porous Gold Nanoparticles
作者： Mingzhen Guo , Jiang He , Shuang Ma , Xiaohan Sun , Mingda Zheng
DOI: 10.1142/S1793292017500503
关键词:
摘要: In this paper, a novel colorimetric biosensor for Hg2+ is presented based on stimulated peroxidase-like activity of hollow porous gold nanoparticles (HPGNPs). Under mild conditions, HPGNPs show high catalytic toward the oxidation 3, 3′, 5, 5′-tetramethylbenzidine (TMB) using H2O2 as an oxidant. The “switched-on” selectively in presence Hg2+, which permitted and facile sensor Hg2+. This method exhibits many merits like selectivity sensitivity. As low 18.5nM could be determined at linear range from 0.5×10−6M to 50×10−6M. successfully applied determination total mercury content tap water Yellow River indicates that has great potential routine environmental samples.
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