Producción Científica Profesorado

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



Galan Vidal, Carlos Andres

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

A Semiempirical PM6 Study of Some Aminopyrimidine Derivatives and their Interaction with an Iron Sur...

Influence of the Cation Nature of the Sulphate Salt on the Electrochemical Synthesis of Sulfate-Dope...

THEORETICAL STUDY ON THE MODIFICATION OF ACTIVE SITES IN GOLD SURFACES MODELED AS FINITE CLUSTERS: I...

Hydrogen bond studies in substituted N-(2-hydroxyphenyl)--2-[(4-methylbenzenesulfonyl)amino]acetamid...

Chemical Reactivity of Atrazine Employing the Fukui Function

Characterization of Main Anthocyanins Extracted from Pericarp Blue Corn by MALDI-ToF MS

Theoretical and Experimental Study of Cobalt Nucleation and Growth onto Gold Substrate with Differen...

Effect of TiO2-Al2O3 sol-gel supports on the superficial Ni and Mo species in oxidized and sulfided ...

The role of temperature in copper electrocrystallization in ammoniachloride solutions

A theoretical quantum study on the distribution of electrophilic and nucleophilic active sites on Ag...