Preparation of cobalt-poly (naphthylamine)/sodium dodecylsulfate-modified carbon paste electrode as a sensitive sensor for l-cysteine

A novel modified electrode for determination of l-cysteine (l-CySH) was described. The electrode comprises a cobalt-poly (naphthylamine)/sodium dodecyl sulfate (Co-PNA/SDS) as a modifier in the carbon paste matrix. This modified electrode has been produced by electropolymerization of naphthylamine in the presence of SDS and then incorporating of Co(II) ions. The electrochemical studies of this modified electrode (Co-PNA/SDS/MCPE) were done by...