Catalytic Reaction-Nanogold Resonance Rayleigh Scattering Method for the Determination of Trace Tellurium

Abstract:

In 6 mol/L HCl medium, TeO₄^2- is reduced by NaH₂PO₂ to Te that catalyze NaH₂PO₂ reducing HAuCl₄ to form gold nanoparticles (AuNPs), which exhibited a strong resonance Rayleigh scattering (RRS) peak at 370 nm. With the TeO₄^2- concentration increased, the catalytic reaction enhanced and formed more AuNPs that resulting in the RRS peak increased. Under the chosen conditions, the RRS intensity at 370 nm enhanced linearly with the concentration of TeO₄^2- in the range of 12.5-287.5 nmol/L. This RRS method was sensitivity, selectivity, and simplicity.

• Periodical: Advanced Materials Research (Volume 787)
• Pages: 392-395
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.787.392
• Online since: September 2013
• Authors: Qing Zeng, Ai Hui Liang, Wen Qing Yin, Zhi Liang Jiang
• Keywords: Catalysis, Gold Nanoparticles (GNP), Resonance Rayleigh Scattering Spectra, Te

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