A new voltammetric method for the simultaneous determination of the antioxidants TBHQ and BHA in biodiesel using multi-walled carbon nanotube screen-printed electrodes

► Use of modified screen-printed electrodes to simultaneous detection of antioxidants. ► Methodology for simultaneous determination of TBHQ and BHA in micelar medium. ► The electrochemical system was easily adapted for on-site analysis.