Sensitive and selective determination of vitamin B2 in non-alcoholic beverage and milk samples at poly (glutamic acid)/zinc oxide nanoparticles modified carbon paste electrode

Table 1 Comparison of different electrochemical sensors reported for the determination of vitamin B2

Modified electrode	Technique	Linear range (µM)	LOD (µM)	References
ERGO/GCE	DPV	0.1–40	0.016	[57]
AuNPs@PDA-RGO/GCE	DPV	0.02–60	0.0096	[55]
α-Fe₂O₃/ MWCNT/AuNPs/GCE	SWV	0.3–60	0.006	[46]
PNN/GPE	LSV	5–60	0.782	[11]
MnTPP/CPE	DPV	0.01–10	0.008	[6]
P₃MT/GCE	DPV	0.1–200	0.05	[8]
PDLPAMCPS	DPV	6–30	0.092	[7]
MnO₂/GCE	DPV	2–110	0.027	[60]
MnO₂/CPE	DPV	0.02–9	0.015	[61]
GF/GCE	DPV	0.001–0.015	0.0001	[58]
PAMCPE	DPV	2–50	0.093	[12]
MB-SO₃H-MSM/GCE	DPV	0.01–50	0.005	[56]
poly (glutamic acid)/ZnO NPs- CPE	SWV	0.005–10	0.0007	This work

ERGO electrochemically reduced graphene oxide, AuNPs@PDA–RGO/GCE gold nanoparticles on glassy carbon electrode modified by a hybrid of polydopamine and reduced graphene oxide; MWCNT = multi- walled carbon nanotube, PNNMGPE poly (niacin) modified graphite paste electrode; LSV = linear sweep voltammetrym, MnTPP/CPE manganese (III) tetraphenylporphyrin modified carbon paste electrode, P₃MT/GCE poly (3–methylthiophene) modified glassy carbon electrode, PDLPAMCPS poly (DL-phenylalanine) modified carbon sensor; MnO2/GCE manganese dioxide modified glassy carbon electrode, GF-GCE graphene film modified glassy carbon electrode; PAMCPE─Poly(arginine) modified carbon paste electrode, MB-SO₃H-MSM methylene blue incorporated mesoporous silica microsphere, DPV Differential pulse voltammetry

ISSN: 2661-801X