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

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

Potentiometric behavior of graphite-epoxy electrochemical transducers towards anions, cations and pH...

Electrochemical and AFM characterization of the electropolimerization of pyrrole over a graphiteepox...

Nucleation and Growth Kinetics of Electrodeposited Sulfate-Doped Polypyrrole: Determination of the D...

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

Development of a Polypyrrole Selective Membrane For The Potentiometric Quantification of Saccharinat...

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

Sequential Injection Spectrophotometric Determination of Diclofenac in Urine and Pharmaceutical Form...

Presence and antimicrobial resistance of Escherichia coli isolated from foodstuffs in Hidalgo State ...

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