Detection of Polychlorinated biphenyls, Delor 103 and Delor106, at amalgam electrodes by elimination voltammetry

Besides the chromatography techniques which are used to study the concentration shanking, the electrochemical methods like cyclic voltammetry (CV), differental pulse voltammetry (DPV) or alternating current voltammetry (AC voltammetry) we be can applied. All of these measurements are based on the direct electrochemical reduction of PCBs in nonaqueous media. This work deals with informations about the electrochemical properties of the commercially produced mixture Delor 103 and Delor 106 (Chemko, Stražske, Slovensko) at silver solid amalgam electrode (Ag-SAE). We present results for the detection of Delor 103 and 106 in 0.05 M solution of tetrabutylammonium perchlorate in N,N-dimethylformamide. The electrochemical behaviour of PCBs was studied by cyclic voltammetry (CV) and with elimination voltammetry with linear scan (EVLS) as well.