Table 2.

Comparison of the linear range and detection limit with other modified electrodes for the determination of SY.

Modified Electrodes	Technique	Supporting Electrolyte	Linear Range/μM	Correlation Coefficient	Detection Limit/μM	References
CTAB-MMT-Ca/CPE	i DPV	0.1 M acetate buffer (pH 4.0)	0.0025 to 0.2	0.995	0.00071	[10]
Au-RGO/GCE	DPV	0.1 M PBS buffer (pH 4.0)	0.002–2.145	0.993	0.002	[11]
			2.145–109.145	0.994
AuNRs-GO/GCE	DPV	0.1 M PBS (pH 6.0)	0.01–3.0	0.995	0.0024	[12]
CTAB-Gr-Pt/GCE	DPV	0.1 M PBS (pH3.0)	0.08–10.0	0.9984	0.0042	[13]
GO/MWCNTs/GCE	j LSV	0.1 M PBS buffer (pH 5.0)	0.09–8.0	0.9982	0.025	[14]
ZnO/Cysteic acid/GCE	DPV	0.1 M PBS buffer (pH 5.0)	0.1–3.0	0.9977	0.03	[15]
PDDA-Gr-(Pd-Pt)/GCE	DPV	0.1 M PBS buffer (pH 3.0)	0.02–10.0	-	0.006	[16]
PDDA-Gr-(Pt-Cu)/GCE			0.02–10.0		0.004
PDDA-Gr-(Co-Ni)/GCE			0.008–10.0		0.002
Chit-Gr/GCE	CV	0.1 M PBS buffer (pH 6.0)	0.2–100	0.99	0.0666	[17]
MnO2 NRs-ERGO/GCE	SDLSV	0.3 M citrate buffer (pH 4.5)	0.01–2	0.9983	0.002	This work
			2–10	0.9965
			10–100	0.9944