Additional file 1: Figure S1. of Gold nanoparticle-based sensing platform of hydrazine, sulfite, and nitrite for food safety and environmental monitoring

CV curves of the bare GC electrode recorded for the absence (dotted line) and the presence (solid line) of 250 μM hydrazine (A), sulfite (B), and nitrite (C) in 0.1 M PB (pH 7.2), at a scan rate of 50 mV s−1. (DOCX 419 kb