Determination of chromium(<scp>iii</scp>) by differential pulse stripping voltammetry at a chitosan–gold nanocomposite modified screen printed electrode

Abstract

Detection of trivalent chromium with screen printed electrodes modified by chitosan–gold nanocomposites using differential pulse voltammetry (DPSV), showing a linear range from 1 to 100 μM and a detection limit of 0.4 μM (based on 3<italic>σ</italic>).