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Colorimetric Assay of H2O2 Using Fe3O4 Nanoparticles as Nanocatalyst

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Abstract:

Fe3O4 nanoparticles were prepared, and catalyzed the reaction of H2O2-methyl orange. In pH 1.42 HCl-NaAc buffer solution, methyl orange has two absorption peaks at 331nm and 506 nm. When Fe3O4 nanoparticles was added, it can catalyzed H2O2 oxidizing methyl orange to result in the absorption value decreased at 506 nm. The decreased absorption value is linear with the concentration of H2O2 in the range of 3.5-33 μmol/L. Based on this, a new colorimetric assay has been proposed for the determination of H2O2 in the water sample, with satisfactory results.

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Periodical:

Applied Mechanics and Materials (Volume 299)

Pages:

195-198

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.299.195

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Online since:

February 2013

Authors:

Zhi Liang Jiang, Xiao Jing Liang, Xun Jiao Lu, Qiu Ye Huang

Keywords:

Colorimetric Assay, Fe3O4 Nanoparticles, H2O2, Methyl Orange

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© 2013 Trans Tech Publications Ltd. All Rights Reserved

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