Determination of thermodynamic adsorption characteristics of silver nanoparticles in the conditions of reversed-phase high-performance liquid chromatography
Keywords:
nanoparticles, reversed micelles, adsorption.Abstract
Reversed-phase high-performance liquid chromatography method was used to determine the
thermodynamic adsorption characteristics of stable silver micellar nanoparticles synthesized by
radiochemical method of synthesis in reversed-micellar solution of H2O+Ag+/Аerosol OТ/isooctane. It
was found that adsorption of nanoparticles has equilibrium and reversible character and it can be
described by linear Henry isotherm under specified concentrations of components of eluent. Retention
time and peak width of nanoparticles change with variated conditions of analysis (composition of eluent
and column temperature). The thermodynamic adsorption characteristics of silver nanoparticles were
calculated. Obtained thermodynamic adsorption characteristic values have confirmed our hypothesis that
adsorption of nanoparticles is a spontaneous and exothermic process
