In:
Journal of the Chinese Chemical Society, Wiley, Vol. 70, No. 1 ( 2023-01), p. 87-100
Abstract:
The present study describes the simple and fast preparation of Cerium (III) hexacyanoferrate (II) (CeHCF) solid nanoparticles at three different water/formamide (%) ratios used as solvent (v/v) (100:0, 80:20, 0:100). CeHCF nanoparticles (Nps) were characterized by fourier transform infrared pectroscopy (FTIR), x‐ray diffraction (XRD), scanning electron microscopy (SEM), zeta potential and cyclic voltammetry (CV). Electrodes modified with CeHCF presented a well‐defined redox pair with formal potential (E o′ ) of approximately 0.29 V (vs. Ag/AgCl(sat) attributed to the Fe 2 + /Fe 3+ redox pair in the presence of cerium (III)). The Nps in the three systems investigates, presents a random size distribution to different surface, where most were distributed between 20 and 160 nm. Considering the three investigated systems, only CeHCF‐1 (100:0) was sensitive to L‐dopamine, presenting a linear signal region as a function of L‐dopamine concentrations, with a limit of detection (LD) of 0.125 mmol L −1 , limit of quantification (LQ) of 0.419 mmol L −1 and amperometric sensitivity (S) of 148.16 μA mmol L −1 .
Type of Medium:
Online Resource
ISSN:
0009-4536
,
2192-6549
DOI:
10.1002/jccs.202200449
Language:
English
Publisher:
Wiley
Publication Date:
2023
detail.hit.zdb_id:
2029538-8
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