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Simultaneous Voltammetric Determination of Cd 2+ and Pb 2+ in Gasoline Samples Employing a Chemically Modified Acrylonitrile‐Butadiene‐Styrene (ABS) Composite Electrode
Author(s) -
Oliveira Grasielli C.,
Vicentino Priscila O.,
Cassella Ricardo J.,
Xing Yutao T.,
Ponzio Eduardo A.
Publication year - 2021
Publication title -
electroanalysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.574
H-Index - 128
eISSN - 1521-4109
pISSN - 1040-0397
DOI - 10.1002/elan.202060139
Subject(s) - bismuth , acrylonitrile butadiene styrene , acrylonitrile , materials science , nuclear chemistry , styrene , composite number , electrode , graphite , analytical chemistry (journal) , chemistry , chromatography , metallurgy , polymer , composite material , copolymer
A composite electrode based on acrylonitrile‐butadiene‐styrene and graphite chemically modified with a bismuth film (AGCE‐BiF) was applied for the simultaneous determination of Cd 2+ and Pb 2+ in gasoline samples. Extraction induced by microemulsion breaking (EIMB) was used for the first time in the preparation of the samples for electroanalysis. AGCE‐BiF was characterized by SEM, AFM, CV, and SWASV. The sensor showed an increase in sensitivity via in situ modification with bismuth film. The LOD was 4 μg L −1 for Cd 2+ and 2 μg L −1 for Pb 2+ . The results showed satisfactory recoveries and precision, being statistically compatible to those obtained with FAAS.