Nanoparticle impacts show high-ionic-strength citrate avoids aggregation of silver nanoparticles

Abstract

Quantitative analytical detection and sizing of silver nanoparticles is achieved by applying the new electrochemical method nanoparticle coulometry. For the first time, tri-sodium citrate is used as both an electrolyte and a nanoparticle stabilizing agent, allowing the individual particles to be addressed.

Keywords: analytical chemistry; anodic particle coulometry; citrate; electrochemistry; nanoparticles.