A carbon paste electrode modified with poly(methylene disulfide) nanoparticles for anodic stripping voltammetric determination of silver(I).

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2019
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Abstract
Poly(methylene disulfide) nanoparticles (PMDSNPs) were synthesized and characterized by FTIR, FESEM, EDX, and TGA. The nanomaterial was used to modify a carbon paste electrode to obtain a sensor for differential pulse anodic stripping voltammetric analysis of silver ion. The silver ions are accumulated on the modified electrode by reduction at a potential of -0.3 V. This is followed by the quantitation of adsorbed Ag(I) by differential pulse anodic stripping voltammetry. Under optimized conditions, the electrode has a dynamic range in the 3.0 × 10 to 1.0 × 10 mol L Ag(I) concentration range, and the detection limit is 1.0 × 10 mol L. The relative standard deviation (for n = 6) is 1.8%, this showing good reproducibility. The method was successfully applied to the determination of Ag(I) in spiked tap and river waters and tea leaves. The results were in good agreement with those obtained by inductively coupled plasma optical emission spectrometry. Graphical abstract Graphical presentation of synthesis of poly(methylene disulfide) nanoparticles (PMDSNPs) and their use as a modifier in a carbon paste electrode (MCPE). Differential pulse anodic stripping voltammograms of the MCPE for silver ion are compared with those of the bare CPE.
Reference Key
ghalebi2019a Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Ghalebi, Seyedeh Mina;Zare-Shahabadi, Vahid;Parham, Hooshang;
Journal Mikrochimica acta
Year 2019
DOI
10.1007/s00604-018-3156-0
URL
Keywords Keywords not found

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