Figure 5From: Chronoamperometric study of elemental sulphur (S) nanoparticles (NPs) in NaCl water solution: new methodology for S NPs sizing and detection Chronoamperometric curves recorded in Na 2 S 4 0.55 mol∙dm −3 NaCl solutions of different concentrations 10 minutes after acidification with HCl. The potential of the Hg electrode was set to −800 mV vs. Ag/AgCl.Back to article page