Electrochemical determination of zinc(II) using N¹-hydroxy-N¹,N²-diphenylbenzamidine and multi-walled carbon nanotubes modified carbon paste electrode.

ABSTRACT: In this study, a new carbon paste electrode modified with a laboratory-synthesized ligand, N¹-hydroxy-N¹,N²-diphenylbenzamidine (HDPBA) and multi-walled carbon nanotubes (MWCNTs) (HDPBA‒MWCNTs/CPE) has been developed. The modified electrode was applied for preconcentration and voltammetric determination of zinc ions (Zn(II)) by square wave anodic stripping voltammetry (SWASV). The preconcentration of Zn(II) on the electrode surface was performed in 0.1 M Brinton Robinson (B-R) buffer solution (pH 6) at an applied potential of -1.30 V versus Ag/AgCl for 120 s, followed by stripping in the positive potential scan of the SWASV after a quit time of 10 s. Under optimized experimental conditions, the proposed electrode exhibited a wider linear dynamic response fo

SUBMITTER: Tesfaye E 

PROVIDER: S-EPMC10293732 | biostudies-literature | 2023 Jun

REPOSITORIES: biostudies-literature