Chemical sensor development based on poly(o-anisidine)silverized–MWCNT nanocomposites deposited on glassy carbon electrodes for environmental remediation

POAS–Ag/MWCNT nanocomposites were prepared by an adsorption process. A selective 3-methoxyphenolic sensor was developed by an <italic>I</italic>–<italic>V</italic> technique for the first time. It displays the highest sensitivity (∼3.829 μA cm⁻² mM⁻¹) ever published in the literature.