New Chemically Modified Electrodes Based On Crown Ether-Azulenes For Heavy Metal Analysis

New sensors for heavy metals analysis were designed by using chemically modified electrodes with 6-crown-2-ether- il-vinyl azulene for analytical applications in environment monitoring. The new synthesized compound 4'-(Z-azulen-1-il-vinyl)-6-crown-2-ether (L) has been investigated to study its electrochemical behavior by voltammetric techniques, such as cyclic voltammetry (CV), differential pulse voltammetry (DPV) and rotating disk electrode voltammetry (RDEV). PolyL heavy metal complexing modified electrodes were obtained by electropolymerization. The detection of Hg(II), Pb(II), Cu(II) and Cd(II) ions has been performed using the prepared modified electrodes. Selective results have been obtained for Pb(II) ions determination.