Journal of Chemistry

Research Article

Sensitive and Simultaneous Determination of Hydroquinone and Catechol in Water Using an Anodized Glassy Carbon Electrode with Polymerized 2-(Phenylazo) Chromotropic Acid

Table 1

Analytical performance of sensors reported in the literature for the detection of HQ and CT.


Sensors	Detection method	Linear range HQ/(μM) CT/(μM)	Detection limit (HQ/CT)/μM	Ref.

MOF-ERGO	DPV	0.1–566	0.1/0.1	[7]
		0.1–476
pDNPH/AGCE	DPV	20–250	0.75/0.76	[9]
		20–250
TH-GO/GCE	DPV	1–200	0.02/0.025	[17]
		1–200
(NGB) MCPE	DPV	20–90	0.19/0.20	[18]
		20–90
PBCB-modified AGCE	DPV	5–250	0.06/0.05	[19]
		5–250
PEB/AGCE	DPV	1–100	0.13/0.12	[23]
		1–100
SPCE/GO	DPV	1–312	0.27/0.182	[28]
		1–350
PB/SPCE	DPV	4–90	0.12/0.42	[38]
		1–90
Pal/NGE	DPV	2–50	0.8/0.13	[40]
		1–50
MCPE	DPV	20–180	0.20/0.16	[41]
		20–180
MOF-rGO	DPV	10–1400	0.66/0.4	[42]
		4–1000
CuO-CNF/GCE	CV/DPV	3–80	1/2	[43]
		0–150
PMMA_G_F	SWV	370–2680	270/170	[44]
		150–1670
GCE	DPV	0.5–3.0	0.06/0.06	[45]
		0.5–3.0
CNFs-Sm₂O₃/GCE	DPV	1–500	0.09/0.07	[46]
		1–500
PPGE	DPV	2–200	1.17/1.32	[47]
		2–200
Au3@Pd6/GCE	DPV	4–500	0.63	[48]
PCH/AGCE	DPV	1–300	0.044/0.066	This work
		1–300

Note: MOF-ERGO: MOF-199 (MOF) and graphene oxide (GO); pDNPH/AGCE: 2,4-dinitrophenylhydrazine (DNPH), and it was electropolymerized on the surface of an anodized glassy carbon electrode; TH-GO/GCE: thionine/graphene oxide-modified glassy carbon electrodes; (NGB) MCPE: poly(naphthol green B)-modified carbon paste electrode; PBCB-modified AGCE: poly (brilliant cresyl blue)-modified activated glassy carbon electrode; PEB/AGCE: poly(Evans blue-) (PEB-) modified anodized glassy carbon electrode; PB-SPCE: prussian blue-modified screen-printed carbon electrode; Pal/NGE: nitrogen-doped graphene (NGE) and palygorskite (Pal); Poly(glycine) MCPE: poly(glycine)- modified carbon paste electrode; SPCE/aGO: activated graphene oxide- (aGO-) modified screen-printed carbon electrode (SPCE); MOF-rGO: reduced graphite oxide (rGO) incorporated into a metal organic framework (MOF); CuO-CNF/GCE: copper oxide and carbon nanofragment-modified glassy carbon electrode; PMMA_G_F: polymethylmethacrylate and graphite foams; GCE: glass carbon electrode; CNFs-Sm₂O₃/GCE) : CNFs-Sm₂O₃ nanocomposite-modified glassy carbon electrode; PPGE: pretreated pencil graphite electrode; Au3@Pd6/GCE: Au3@Pd6 (nAu : nPd = 3 : 6) modified the glassy carbon electrode (Au3@Pd6/GCE).