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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 749A Sensitive Hydride Generation-Nanogold...

A Sensitive Hydride Generation-Nanogold Spectrophotometric Method for Trace As(III)

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Abstract:

In H₂SO₄ solution, the arsenic was reduced to arsine (AsH₃) by NaBH₄, and absorbed by solution of H₃PO₄-HAuCl₄-NH₄SCN-gum arabic. The Au³⁺ was reduced to nanogold, which led to the absorption value at 555nm increased. Under the selected conditions, the value was linear to the concentration of As (III) in the range of 0.07-1.10 μg/mL, a detection limit of 0.03 μg/mL. The proposed method was applied to detect As (III) in water samples, with satisfactory results.

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Periodical:

Advanced Materials Research (Volume 749)

Pages:

495-498

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.749.495

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Online since:

August 2013

Authors:

Yang He Luo, Mei Ling Tang, Gui Qing Wen, Wen Qing Yin, Zhi Liang Jiang, Ai Hui Liang

Keywords:

As(III), Hydride Generation, Nanogold, Spectrophotometry

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© 2013 Trans Tech Publications Ltd. All Rights Reserved

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