The Igusa-Todorov O-Dimension on Morita Context Algebras

Electrochemically reduced graphene oxide (ERGO) is a promising material for heavy metal ion detection due it its facile synthesis and electroactive defects. A simple ERGO sensor was fabricated directly on a glassy carbon electrode using cyclic voltammetry. Deposition cycles were optimized for sensitivity to the analytes, with 12 cycles found to be ideal. Differential pulse voltammetry was used to detect trace amounts of lead and cadmium, down to 5 nM for lead and 75 nM for cadmium (S/N > 3). The sensors were robust and their data reproducible, even in the presence of iron and zinc ions.