Please use this identifier to cite or link to this item: https://hdl.handle.net/11499/51073
Title: Graphene quantum dots incorporated NiAl2O4 nanocomposite based molecularly imprinted electrochemical sensor for 5-hydroxymethyl furfural detection in coffee samples
Authors: Turan, Hatice Ebrar
Medetalibeyoğlu, Hilal
Polat, İlknur
Bankoğlu Yola, Bahar
Atar, Necip
Yola, Mehmet Lutfi
Keywords: Acid
Honey
Oxide
Hplc
Publisher: Royal Soc Chemistry
Abstract: 5-Hydroxymethyl furfural (HMF) is an intermediate produced by dehydrating sugars, such as fructose, sucrose, and glucose, in an acidic medium or during the Maillard reaction. It also occurs due to the storage of sugary foods at inappropriate temperatures. In addition, HMF is seen as a quality criterion in products. In this study, a novel molecularly imprinted electrochemical sensor based on graphene quantum dots incorporated NiAl2O4 (GQDs-NiAl2O4) nanocomposite was presented for the selective determination of HMF in coffee samples. Various microscopic, spectroscopic, and electrochemical methods were carried out for the structural characterizations of GQDs-NiAl2O4 nanocomposite. The molecularly imprinted sensor was prepared by multi-scanning using cyclic voltammetry (CV) in the presence of 100.0 mM pyrrole monomer and 25.0 mM HMF. After method optimization, the sensor revealed linearity towards HMF in the range of 1.0-10.0 ng L-1 with a detection limit (LOD) of 0.30 ng L-1. The developed MIP sensor's high repeatability, selectivity, stability, and fast response ability can provide reliable HMF detection in beverages, such as coffee, which is heavily consumed.
URI: https://doi.org/10.1039/d3ay00382e
https://hdl.handle.net/11499/51073
ISSN: 1759-9660
1759-9679
Appears in Collections:Mühendislik Fakültesi Koleksiyonu
PubMed İndeksli Yayınlar Koleksiyonu / PubMed Indexed Publications Collection
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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