Voltammetric Determination of Trace Amounts of Lead With Novel Graphite/Bleaching Earth Modified Electrode

Authors : Elif TÜZÜN

Pages : 659-670

Doi:10.18596/jotcsa.1283767

View : 37 | Download : 56

Publication Date : 2023-08-30

Article Type : Research Paper

Abstract :Modified composite electrodes have gained considerable interest in the detection of heavy metal ions due to their excellent sensitivity, selectivity, stability, and rapid response. Generally, these sensors consist of binder, conductive substance, and modifier. This study examined into the performance of a novel modified electrode that used a graphite–bleaching earth insert ignore into journalissuearticles values(BE-MCPE); composite performed while detecting trace amounts of Pbinsert ignore into journalissuearticles values(II); using a differential pulse voltammetric technique insert ignore into journalissuearticles values(DPASV);. In order to investigate the properties of BE-MCPE, we employed several analytical techniques, including SEM, SEM-EDX, FTIR, and XRD. These techniques were used to characterize the physical, chemical, and elemental properties of BE-MCPE, as well as its Pbinsert ignore into journalissuearticles values(II); adsorption capacity, providing a comprehensive understanding of its composition and structure. The electrochemical results showed that the modified electrode demonstrated superior sensitivity and selectivity, in detecting Pbinsert ignore into journalissuearticles values(II); ions, with a linear response range of 2.10-7 M to 10.10-7 M, limit of detection insert ignore into journalissuearticles values(LOD); of 4,89x10-8 mol.L-1, and limit of quantification insert ignore into journalissuearticles values(LOQ); of 1,63x10-7 mol.L-1. This novel modified electrode can achieve the sensitive detection of trace amounts of Pbinsert ignore into journalissuearticles values(II); in a wide range of wastewater applications.
Keywords : bleaching earth, voltammetry, modified electrode, clay, heavy metal