Therefore, the MoS2/MWCNT-COOH- modified electrode is a potential analytical method in nitrite determination. Keywords: electrochemical sensor; MoS2; carboxylic multiwall carbon nanotubes (MoS2/MWCNT- COOH); glassy carbon electrode (GCE); cyclic voltammetry (CV) 1. Introduction Nitrite (NO2−) has...