Voltammetry Determination of Pb(II), Cd(II), and Zn(II) at Bismuth Film Electrode Combined with 8-Hydroxyquinoline as a Complexing Agent

Table 4

Comparison of LOD and linear range related to different electrodes and methods for determination of analytes.

Electrode	Method	Analyte	LOD (ppb)	Linear range (ppb)	Ref.
Hg-Bi/SWNTs/GCE	SqW-AdSV	Cd(II)	0.98	10–130	[26]
		Pb(II)	1.3
		Zn(II)	2
BiFEs	SqW-AdSV	Cd(II)	0.82	5.6–39.2	[27]
		Pb(II)	1.64	4.1–41.4
		Zn(II)	0.08	2.6–39.2
G/PANI/NME	SqW-AdSV	Cd(II)	0.1	1–300	[28]
		Pb(II)	0.1	1–300
		Zn(II)	1.0	1–300
Ƴ-AlOOH@SiO2/Fe3O4/GCE	SqW-AdSV	Zn(II)	2.6	2616–36624	[29]
		Cd(II)	1.12	1120–15680
		Pb(II)	0.4	414–99456
Bi/GCE	SqW-AdSV	Cd(II)	0.49	0.05–100	[30]
		Pb(II)	0.41	0.05–100
BiFE	SqW-AdSV	Zn(II)	0.78	2–110	This work
		Cd(II)	0.17	2–110
		Pb(II)	0.45	2–110

SWNT: single-walled carbon nanotube; G/PANI/NME: graphene-based polyaniline nanocomposite-modified electrode.