Producción Científica Profesorado

Electrochemical Determination of Pb(II) Using Carbon Paste Electrodes Modified with Ion Imprinted Polymers (IIPs).



Alvarez Romero, Giaan Arturo

2022

Luz E. Rebolledo, Giaan Arturo Álvarez Romero, Israel Samuel Ibarra-Ortega, Carlos Andres Galan-Vidal, Irma Pérez-Silva. (2022). Electrochemical Determination of Pb(II) Using Carbon Paste Electrodes Modified with Ion Imprinted Polymers (IIPs). ECS Transactions, 106, 21.


Abstract


An easy, low-cost, and highly selective carbon paste electrode based on an ion-imprinted polymer (IIP) to determine Pb(II) in real samples was developed. The recognition cavities based on a cross-linked polymer selective to Pb(II) were created using vinyl pyridine. The modified CPE was constructed by a composite mixture with the synthesized IIP. A notable difference was observed in the electrochemical response of the electrodes modified with the IIP and a non-imprinted polymer, demonstrating the unique properties of the IIP recognition sites. The parameters related to the current intensity were optimized; the selectivity was also studied considering potential interference ions. The proposed modified electrode demonstrated to be as (or more) selective to Pb(II) compared to others previously reported in the literature. A linear concentration range from 3.3 mg/L to 33 mg/L with a limit detection of 1 mg/L was obtained. The Pb(II) preconcentrated on the electrode surface was successfully quantified in real potable water samples without previous treatment.






Artículos relacionados

Metal content evaluation and its effect on the stability of anthocyanins

Potentiometric Behavior of Diverse Polypyrrolesulphate Films Electro Synthesized on Graphite Epoxy ...

Development of a Chloride Ion-Selective Solid State Sensor Based on Doped Polypyrrole-Graphite-Epoxy...

Multicommutated Anodic Stripping Voltammetry at Tubular Bismuth Film Electrode for Lead Determinatio...

Determination of glucose by flow injection analysis with amperometric detection at Fe(III)-(tris(3,5...

cis-Palladium(II) complexes of derivatives of di-(2-pyridyl)methane: Study of the influence of the b...

Synthesis, characterization, and crystal structures of n-alkyldiorganodithiophosphates RS2P(OC6H4)2

Determination of tetracyclines in milk samples by magnetic solid phase extraction flow injection ana...

Construction and Evaluation of a Gold Tubular Electrode for Flow Analysis: Application to Speciation...

Potentiometric quantification of saccharin by using a selective membrane formed by pyrrole electropo...