The present study attempts to describe a new adsorptive cathodic stripping procedure for simultaneous determination of traceamounts of lead and cadmium by using of 2-mercaptobenzothiazole as a complexing agent (Khullar & Agarwala, 1975). The method is based on the effective accumulation of the Pb (II) and Cd (II) complexes with 2-mercaptobenzothiazole onto the hanging mercury drop electrode (HMDE). This method has low detection limits and is able to determine lead and cadmium in different real samples