Synthesis of MnCo2O4 nanoparticles as modifiers for simultaneous determination of Pb(II) and Cd(II)

Објеката

Тип

Рад у часопису

Верзија рада

објављена верзија

Језик

енглески

Креатор

Vesna Antunović, Marija Ilić, Rada Baošić, Dijana Jelić, Aleksandar Lolić

Извор

PLOS ONE

Датум издавања

2019

Сажетак

The porous spinel oxide nanoparticles, MnCo2O4, were synthesized by citrate gel combustion technique. Morphology, crystallinity and Co/Mn content of modified electrode was characterized and determined by Fourier transform infra-red spectroscopy (FT-IR), scanning electron microscopy (SEM), energy dispersive spectrometry (EDS), X-ray diffraction pattern analysis (XRD), simultaneous thermogravimetry and differential thermal analysis (TG/DTA). Nanoparticles were used for modification of glassy carbon electrode (GCE) and new sensor was applied for simultaneous determination of Pb(II) and Cd(II) ions in water samples with the linear sweep anodic stripping voltammetry (LSASV).The factors such as pH, deposition potential and deposition time are optimized. Under optimal conditions the wide linear concentration range from 0.05 to 40 μmol/dm3 was obtained for Pb(II), with limit of detection (LOD) of 8.06 nmol/dm3 and two linear concentration ranges were obtained for Cd(II), from 0.05 to 1.6 μmol/dm3 and from 1.6 to 40 μmol/dm3 , with calculated LOD of 7.02 nmol/dm3 . The selectivity of the new sensor was investigated in the presence of interfering ions. The sensor is stable and it gave reproducible results. The new sensor was succesfully applied on determination of heavy metals in natural waters.

том

14

Број

2

doi

10.1371/journal.pone.0210904

issn

1932-6203

Subject

MnCo2O4 nanočestice, modifikatori, određivanje Pb (II) and Cd(II)

uri

http://dx.plos.org/10.1371/journal.pone.0210904

Шира категорија рада

M20

Ужа категорија рада

М22

Права

Отворени приступ

Лиценца

All rights reserved

Формат

.pdf

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Марија Илић

Radovi istraživača

Медија

journal.pone.0210904.pdf

Vesna Antunović, Marija Ilić, Rada Baošić, Dijana Jelić, Aleksandar Lolić. "Synthesis of MnCo2O4 nanoparticles as modifiers for simultaneous determination of Pb(II) and Cd(II)" in PLOS ONE (2019). https://doi.org/10.1371/journal.pone.0210904

This item was submitted on 29. новембар 2023. by [anonymous user] using the form “Рад у часопису” on the site “Радови”: https://dr.rgf.bg.ac.rs/s/repo