Method development for Cd and Hg determination in biodiesel by electrothermal atomic absorption spectrometry with emulsion sample introduction

► Sample preparation as emulsions for routine determination of Cd and Hg in biodiesel. ► This method joins the excellent sensitivity attainable by ETAAS. ► Advantage of this procedure is the stability and ease of sample handling ► This simple and fast method enables the use of aqueous standards for calibrations. ► Use of organ metallic standards or toxic solvents is no needed.