D.V. Averkin, D.I. Belenkii
FSUE «VNIIFTRI», Mendeleevo, Moscow region, Russia
Al’manac of Modern Metrology № 4 (28) 2021, pages 186–193
Annotation. A study was conducted to develop standard samples of the zeta potential of particles in dispersed media based on supramolecular solutions obtained from aqueous solutions of L-cysteine and silver acetate and N-acetyl-L-cysteine and silver acetate. The possibilities of regulating the values of the zeta potential of particles of synthesized precursor samples are investigated. A set of standard samples of particle zeta potential values based on aqueous solutions of L-cysteine and silver acetate in the range of measured values from plus 40 mV to plus 85 mV and a set of standard samples of particle zeta potential values based on aqueous solutions of N-acetyl-L-cysteine and silver acetate in the range of measured values from minus 30 mV to minus 55 mV have been developed.
Key words: zeta potential, double electric layer, suspension, standard sample, supramolecular systems, colloidal particle.
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