Electrochemical determination of trace copper(<scp>ii</scp>) based on<scp>l</scp>-cysteine functionalized gold nanoparticle/CdS nanosphere hybrid

Abstract

This paper describes a simple and efficient electrochemical assay for the determination of trace Cu(<sc>ii</sc>) employing<sc>l</sc>-cysteine functionalized gold nanoparticles/CdS nanospheres/glassy carbon electrode (<sc>l</sc>-cys/AuNPs/CdS/GCE) as an enhanced sensing platform.