Title : ( Polyamidoamine dendrimer functionalized iron oxide nanoparticles for simultaneous electrochemical detection of Pb2+ and Cd2+ ions in environmental waters )
Authors: Behrooz Maleki , Mehdi Baghayeri , Masoud Ghanei-Motlagh , Farrokhzad Mohammadi Zonoz , Amirhassan Amiri , Fatemeh Hajizadeh , AbduRahman Hosseinifar , Ehsan Esmaeilnezhad ,
دانلود فایل برای اعضای دانشگاهAccess to full-text not allowed by authors
Abstract
In the present study, second-generation polyamidoamine dendrimer functionalized magnetic nanoparticles (Fe3O4@G2-PAD) were synthesized and applied for the measuring of Pb2+ and Cd2+ ions in environmental waters. The square wave anodic stripping voltammetry (SWASV) was applied for simultaneous determination of analyte cations after closed-circuit mode. The influence of experimental variables on the performance of the modified magnetic electrode was investigated and optimized. Under optimum conditions, the resulting sensor depicted a linear response to Pb2+ and Cd2+ over a concentration range from 0.5 to 80 ng mL−1. Low detection limits of 0.17 ng mL−1 for Pb2+ and 0.21 ng mL−1 for Cd2+ were obtained following 140 s accumulation time, which are well below than the World Health Organization (WHO) guideline (3 ng mL−1 for cadmium and 10 ng mL−1 for lead) in drinking water. The prepared sensor was successfully applied to the detection of Pb2+ and Cd2+ in the presence of some potentially interfering ions. In addition, the electrochemical sensor was employed for the determination of both heavy metal ions in the real water samples (river water, wastewater and lake water) and the obtained results were satisfactory compared with graphite furnace atomic absorptions spectrometry (GF-AAS) protocol.
Keywords
, Heavy metals; Electrochemical sensor; Multi, element sensing; Environmental water samples
@article{paperid:1084530,
author = {Behrooz Maleki and Mehdi Baghayeri and Masoud Ghanei-Motlagh and Farrokhzad Mohammadi Zonoz and Amiri, Amirhassan and Fatemeh Hajizadeh and AbduRahman Hosseinifar and Ehsan Esmaeilnezhad},
title = {Polyamidoamine dendrimer functionalized iron oxide nanoparticles for simultaneous electrochemical detection of Pb2+ and Cd2+ ions in environmental waters},
journal = {Measurement},
year = {2019},
volume = {140},
month = {April},
issn = {0263-2241},
pages = {81--88},
numpages = {7},
keywords = {Heavy metals; Electrochemical sensor; Multi-element sensing; Environmental water samples},
}
%0 Journal Article
%T Polyamidoamine dendrimer functionalized iron oxide nanoparticles for simultaneous electrochemical detection of Pb2+ and Cd2+ ions in environmental waters
%A Behrooz Maleki
%A Mehdi Baghayeri
%A Masoud Ghanei-Motlagh
%A Farrokhzad Mohammadi Zonoz
%A Amiri, Amirhassan
%A Fatemeh Hajizadeh
%A AbduRahman Hosseinifar
%A Ehsan Esmaeilnezhad
%J Measurement
%@ 0263-2241
%D 2019
