Resonance Rayleigh Scattering Spectra Property of Selenium Nanoparticles and its Analytical Application

Abstract:

In 0.1 mol/L HCl medium and the presence of 0.3% glycerin as stabilizer, selenium (Ⅳ) was reduced by thiourea to form selenium nanoparticles, which exhibited a strong resonance Rayleigh scattering (RRS) peak at 366 nm. The RRS peak intensity increased when selenium (Ⅳ) increased. The increased RRS intensity at 366 nm (ΔI_366nm) was proportional to the selenium (Ⅳ) concentration (C) from 1 to 32 μg/L, with a regression equation of ΔI_366nm = 222.99 C+74.69, and detection limit of 1.19 ng/L. This proposed method was applied to detect selenium in samples, with satisfactory results.

• Periodical: Advanced Materials Research (Volume 664)
• Pages: 736-740
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.664.736
• Online since: February 2013
• Authors: Ai Hui Liang, Shan Shan Huang, Zhi Liang Jiang
• Keywords: Resonance Rayleigh Scattering Spectra, Selenium, Thiourea

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