D.V. Averkin1, 2, A.A. Stakheev1, D.V. Vishnevetskii2, P.M. Pakhomov2
1 FSUE “VNIIFTRI”, Mendeleevo, Moscow region, Russia
2 Tver State University, Tver, Russia
averkin@vniiftri.ru
Al’manac of Modern Metrology № 1 (33) 2023, pages 272–280
Abstract. The authors of this work conducting a study of the precursor of reference materials of the zeta potential of particles in dispersed systems. The precursor is based on supramolecular solution of L-cysteine and silver acetate (CSSac). Particles and aggregates of CSSac were studied by dynamic light scattering (DLS), phase analysis of scattered radiation (PALS), inductively coupled plasma mass spectrometry (ICP-MS) and high-resolution transmission electron microscopy (HR-TEM). It was established that the diameter of the potential-determining aggregates of the CSSac is in the range from 20 nm to 100 nm. These aggregates consist of nanoparticles up to 10 nm in diameter.
Keywords: zeta potential, electrical double layer, suspension, supramolecular system, colloidal particle, aggregate, mass spectrometry, dynamic light scattering.
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