Arsenic contamination in drinking water, which mainly results from natural sources and human activities, poses a significant health risk globally. Simple field-based detection methods are crucial for monitoring water sources; a transduction method using functionalized single-walled carbon nanotubes (SWCNT) shows promise. Polyvinyltriazole (PVT)-functionalized SWCNT sensors offer better sensitivity (0.77%/ppb) and detection range compared to pristine SWCNT sensors. Further research aims to improve sensitivity and widen the detection range by understanding the interaction between PVT and SWCNTs. Stoichiometry studies suggest a ratio of 1.2:1 PVT:SWCNT for monolayer adsorption, indicating potential for enhanced detection capabilities.