Simultaneous determination of hydroquinone and catechol using covalent layer-by-layer self-assembly of carboxylated-MWNTs

Fabrication of CeO2/GCE for Electrochemical Sensing of Hydroquinone

“…Authors used the CV approach for the determination of HQ and obtained an LoD of 3.57 µM with a sensitivity of µA µM −1 cm −2 [ 44 ]. Feng et al [ 45 ] designed and synthesized carboxylic functional multi-walled carbon nanotubes using a layer-by-layer covalent-self-assembly approach. Further, the HQ sensor was developed using carboxylic functional multi-walled carbon nanotubes as the electrode modifier [ 45 ].…”

“…Feng et al [ 45 ] designed and synthesized carboxylic functional multi-walled carbon nanotubes using a layer-by-layer covalent-self-assembly approach. Further, the HQ sensor was developed using carboxylic functional multi-walled carbon nanotubes as the electrode modifier [ 45 ]. Authors modified the GCE with carboxylic functional multi-walled carbon nanotubes and investigated its sensing ability towards HQ detection using CV and DPV techniques [ 45 ].…”

A highly sensitive and selective hydroquinone sensor based on a newly designed N-rGO/SrZrO3 composite

“…Zhang et al 38 employed a polarized glassy carbon electrode which showed a detection limit of 3.7 mM. Carboxylic functional multi-walled carbon nanotubes have been used to construct a HQ sensor by Feng et al 39 and the developed sensor has shown a detection limit of 2.3 mM. We have compared the detection limit obtained by GCE-2 with previously reported sensors and the results are summarized in Table 1.…”

Synthesis and characterization of LaMnO3 nanocrystals and graphene oxide: fabrication of graphene oxide–LaMnO3 sensor for simultaneous electrochemical determination of hydroquinone and catechol

“…A chemically modified electrode is a superior approach to solve the peak separation problem by applying a modifier [18][19][20][21][22][23][24]. Hence, a few modified electrodes have already been reported to determine HQ and CT such as GCE modified by carbon nanotubes (CNT), poly-amid sulfonic acid-CNTs, graphenechitosan composite, carbon nanotubes/poly (3-methylthiophene), penicillamine), Zn/Al layered double hydroxide film, or gold-graphene [25][26][27][28][29][30][31].…”