Graphene quantum dot/Ag-based metal–organic framework nanocomposite-modified carbon paste electrode for simultaneous determination of diazepam, dopamine, clonazepam and adrenaline in real samples

A GQD–Ag-MOF nanocomposite was introduced as a novel material in electrochemical sensing for the first time. The fabricated sensor was employed for the simultaneous detection of DZP, DA, CZP, and AD.