Simultaneous Determination of Zn(II), Cd(II), Pb(II), and Cu(II) Using Differential Pulse Anodic Stripping Voltammetry at a Bismuth Film-Modified Electrode

Table 4

Comparison of some figures of merit related to different electrodes for the determination of analytes.

Electrode	Method	LOD (ppb)				Reference
		Cu(II)	Pb(II)	Cd(II)	Zn(II)
G/PANI/SPE	SqWASV	N/A	0.1	0.1	1.0	[22]
GCE	DP-ASV	39	16.6	9.6	14.7	[23]
Hg-Bi/SWNTs/GCE	SqWASV	N/A	1.3	0.98	2	[24]
Glassy carbon mercury film	LSV	1.50	4.04	2.91	1.68	[25]
	DPV	1.11	1.54	2.21	1.29
	SWV	0.55	1.70	1.09	0.52
BiFE	SqWASV	N/A	1.64	0.82	0.08	[26]
BiFE	SqWASV	N/A	0.41	0.49	—	[27]
BiFE	DP-ASV	0.94	0.65	0.93	1.07	The present work

^— and N/A: not applicable.