Selective adsorption toward toxic metal ions results in selective response: electrochemical studies on a polypyrrole/reduced graphene oxide nanocomposite

Highly selective adsorption of a polypyrrole/reduced graphene oxide nanocomposite toward Hg2+ results in electrochemically selective detection of Hg2+. This interesting finding is of practical utility compared to the biotechniques and surface functionalization-based methods.