Simultaneous Detection of 4-Nitroquinoline-1-oxide and Nitroimidazole Drug Using a Perovskite-BaZrO@NbN-Nanocomposite-Modified Disposable Carbon Electrode.

Pharmaceutical ingredients in water have become a serious threat to living bodies and lead to assorted ecological predicaments. In this study, we have established an electrochemical probe for the simultaneous detection of synthetic pharmaceutical ingredients, including 4-nitroquinoline-N-Oxide (NQN) and ornidazole (ODZ), in both human and environmental samples. This study establishes the detection of NQN and ODZ using a screen-printed carbon electrode (SPCE) modified by highly conducting NbN incorporated with BaZrO perovskite.