A Surface-Enhanced Resonance Raman Scattering Method for the Determination of Trace Crystal Violet on Colloidal Au Nanoparticle Substrate

Abstract:

Colloidal Au nanoparticles as active substrate for surface-enhanced resonance Raman scattering(SERRS) were prepared by the trisodium citrate-reduced procedure. In pH 6.6 Na₂HPO₄-NaH₂PO₄ buffer solution and in the presence of aggregation reagent NaCl, nanogolds were aggregated to form stable aggregated- nanogolds (ANG). The crystal violet (CV) adsorbed on the surface of ANG to form CV-ANG conjugates that produce strongest surface-enhanced resonance Raman scattering peak at 1616 cm^-1. In the optimal condition, the SERRS intensity at 1616 cm^-1 was linear to the CV concentration in the range of 2.5×10^-8 -1.75×10^-7 mol/L, a surface-enhanced resonance Raman scattering assay was set up for detection of trace CV, with good selectivity.

• Periodical: Applied Mechanics and Materials (Volume 299)
• Pages: 191-194
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.299.191
• Online since: February 2013
• Authors: Zhi Liang Jiang, Lu Ma, Ai Hui Liang
• Keywords: Aggregated-Nanogold Suspension, Crystal Violet, Surface-Enhanced Resonance Raman Scattering

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