A voltammetric sensor based on mixed proton-electron conducting composite including metal-organic framework JUK-2 for determination of citalopram

A voltammetric sensor based on mixed proton-electron conducting composite including metal-organic framework JUK-2 for determination of citalopram

A voltammetric sensor has been developed based on glassy carbon electrode (GCE) modification with nanocomposite consisting of manganese-based metal-organic framework (JUK-2), multi-walled carbon nanotubes (MWCNTs), and gold nanoparticles (AuNPs) for detection of citalopram (CIT). The composition and...

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Bibliographic Details
Published in:Mikrochimica acta (1966) Vol. 188; no. 6; p. 184
Main Authors: Madej, Maria, Matoga, Dariusz, Skaźnik, Klaudia, Porada, Radosław, Baś, Bogusław, Kochana, Jolanta
Format: Journal Article
Language:English
Published: Vienna Springer Vienna 01-06-2021
Springer
Springer Nature B.V
Subjects:
Analytical Chemistry
Antidepressants
Biological properties
Characterization and Evaluation of Materials
Chemistry
Chemistry and Materials Science
Conduction
Conductors
Diffraction
Electric properties
Electrochemical analysis
Electrochemical impedance spectroscopy
Fourier transforms
Glassy carbon
Gold
Infrared spectroscopy
Manganese
Metal-organic frameworks
Microengineering
Morphology
Multi wall carbon nanotubes
Nanochemistry
Nanocomposites
Nanoparticles
Nanotechnology
Nanotubes
Original Paper
Sensors
Spectrum analysis
Voltammetry
X ray powder diffraction
X-rays
Metal-organic framework
Mixed ion-electron conductor
Electrochemical sensor
Multi-walled carbon nanotubes
Gold nanoparticles
Citalopram
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Summary:A voltammetric sensor has been developed based on glassy carbon electrode (GCE) modification with nanocomposite consisting of manganese-based metal-organic framework (JUK-2), multi-walled carbon nanotubes (MWCNTs), and gold nanoparticles (AuNPs) for detection of citalopram (CIT). The composition and morphology of JUK-2-MWCNTs-AuNPs/GCE were characterized by X-ray powder diffraction (XRD), Fourier-transform infrared spectroscopy (FT-IR), energy dispersion spectroscopy (EDS), and scanning electron microscopy (SEM). The electrochemical properties investigated using electrochemical impedance spectroscopy (EIS) and cyclic voltammetry (CV) indicated that the fabricated hybrid material exhibits the properties of mixed ion-electron conductor (MIEC). Using staircase voltammetry (SCV), under optimized conditions, the fabricated sensor shows a linear response in three CIT concentration ranges, 0.05–1.0, 1.0–10.0 and 15.0–115.0 μmol L −1 , with a detection limit of 0.011 μmol L −1 . The JUK-2-MWCNTs-AuNPs/GCE was successfully employed for the determination of CIT in pharmaceutical, environmental waters, and biological samples with satisfactory recoveries (98.6–104.8%). Graphical abstract
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ISSN:0026-3672
1436-5073
DOI:10.1007/s00604-021-04835-9