Electrochemical preparation of poly (direct yellow 11) modified pencil graphite electrode sensor for catechol and hydroquinone in presence of resorcinol: A voltammetric study

Electrochemical Detection of Dihydroxybenzene Isomers at a Pencil Graphite Based Electrode

“…Countless applications have been developed based on PGE sensors, such as detection of antioxidants and biological compounds, 46 DNA hybridization related to Microcystis spp., 47 ascorbic acid, 48 paracetamol, 45 etc., as well as the detection of DHBIs. 5 , 2 , 36 , 37 …”

“…To overcome these defects, numerous efforts have been made to investigate new electrode materials capable of detecting HQ, CC, and RS simultaneously, which include glassy carbon electrode (GCE) modified with allura red polymeric film, multiwalled carbon nanotubes (MWCNTs), MWCNTs/poly­(1,5-diaminonaphthalene) composite film, MWCNTs/ionic liquid (IL) gel, Au nanoparticles (NPs) loaded on poly-3-amino-5-mercapto-1,2,4-triazole-MWCNTs film, AuNPs/sulfonated grapheme, poly amidosulfonic acid/MWCNTs, reduced graphene oxide/magnetite NPs/AuNPs composite, graphene–chitosan composite film, poly­(1,5-diaminonaphthalene), aspartic acid, tyrosinase immobilization with ordered mesoporous C–Au/L-lycine membrane/Au NPs, 3D-flower-like copper sulfide nanoflake-decorated carbon nanofragments, activated phosphate buffer solution (PBS), MWCNT/AgNPs, polyglutamic acid, 2-(phenylazo) chromotropic acid-(CH−) conducting polymer, electrochemically reduced grapheme oxide-poly­(Eriochrome black T)/Au NPs, poly­( p -aminobenzoic acid), tyrosinase/Au NPs encapsulated-dendrimer bonded conducting polymer, self-assembled Ti 3 C 2 /MWCNTs nanocomposites, C/Au nanostructured materials, graphene oxide/polymelamine composite, carbon nanocoils/zinc-tetraphenylporphyrin nanocomposite, nitrogen doped porous carbon nanopolyhedrons-MWCNTs hybrid materials, thionine/graphene oxide, gel of 1-butyl-3-methylimidazolium hexafluorophosphate (BMIHP)/MWCNTs, ammonium carbamate, poly­(malachite green)/MWCNT film, carboxy-functionalized CNTs/chitosan matrix/Au Nps, Pd NPs/poly­(1,5-diaminonaphthalene) matrix; pencil graphite electrode (PGE) modified with CNTs, BIHP, poly­(direct yellow 11), cobalt-phthalocyanine; mesoporous Pd electrode, poly­(crystal violet); flexible screen printed carbon electrode; graphene sheets embedded carbon films; poly­(adenine)/graphene paste electrode; carbon ionic liquid electrode modified with graphene, Au NPs/graphene; gold electrode modified with gold atomic cluster-poly­(3,4-ethylenedioxidethiophene) nanocomposite, etc. However, it remains challenging to investigate novel electrode materials for simultaneous detection of DHBIs with a wide linear range and higher sensitivity.…”

“…45 Countless applications have been developed based on PGE sensors, such as detection of antioxidants and biological compounds, 46 DNA hybridization related to Microcystis spp., 47 ascorbic acid, 48 paracetamol, 45 etc., as well as the detection of DHBIs. 5,2,36,37 Recently, PGE has been successfully used to fabricate several biosensors because of its high electrochemical reactivity, conductivity, mechanical rigidity, ease of modification, low background current, and low cost. 45 Amino acids (AAs) have engrossed much consideration for their superior physical and chemical features.…”

An efficient electrochemical sensing of hazardous catechol and hydroquinone at direct green 6 decorated carbon paste electrode

“…Up to now, numerous techniques have been testified for sensing of CA and HY, such as spectrophotometry, capillary electrochromatography (CEC), high-performance liquid chromatography (HPLC), gas chromatography/mass spectrometry (GC/MS), fluorescence (FL, chemiluminescence (CL) and electroanalytical method 17 – 24 . Amongst, the electrochemical analysis has owing prominent in current years to its advantages like simplicity, portability, low cost, time saving, convenient operation, speedy response, as well as high efficiency, sensitivity and selectivity 25 – 30 .…”

Simultaneous determination of hydroquinone and catechol by a reduced graphene oxide–polydopamine–carboxylated multi-walled carbon nanotube nanocomposite

“…For this purpose, diverse analytical methods have been reported, [12][13][14][15][16][17][18] and the electrochemical methods among them have the intrinsic advantages of low-cost instrument, uncomplicated operation, fast response, high selectivity and sensitivity. [19][20][21] To detect HQ and CT simultaneously via electrochemical methods, it is a key point to distinguish the overlapped redox signals of the two isomers caused by their similar chemical structures. Various nanomaterials have been used in an attempt to heighten the selectivity and sensitivity of the dihydroxybenzene sensors, such as carbon nanotubes, 22 metal/metallic oxide nanoparticles, 18,23 quantum dots, 24 metal sulphides, 25 and mesoporous platinum or carbon.…”