Use of hydroxylamine sols of silver nanoparticles for obtaining reference giant Raman scattering spectra

E. G. Evtushenko, E. S. Gavrilina, D. Yu. Gusarova, A. D. Vasilyeva, L. V. Yurina, I. N. Kurochkin

Lomonosov Moscow State University, Faculty of Chemistry
Emanuel Institute of Biochemical Physics, Russian Academy of Sciences, Moscow

Abstract: Surface-enhanced Raman spectroscopy (SERS), due to its high sensitivity, is widely used as a sensitive method in various analytical techniques. One of the stages in the development of such methods is the identification of the detected compound using reference spectra. Intense reference SERS spectra, without extraneous bands and in a wide range of Stokes shifts, are obtained for an important analyte, 2,3-diaminophenazine, the Raman scattering of which is enhanced by aggregated hydroxylamine sols of silver nanoparticles.

Keywords: Raman spectra; surface-enhanced Raman scattering; silver nanoparticles; analytical procedures; 2,3-diaminophenazine; pH; pK_a

Received: 14.12.2022
Accepted: 14.12.2022