Synthesis and Voltammetric Determination of Pb(II) Using a ZIF-8-Based Electrode

Table 1

A comparison of Pb(II) detection using modified electrodes.

Modified electrodes	Method	Linear range (ppb)	LOD (ppb)	References
MIL-101(Cr)/GCE	SW-ASV	0–207	9.11	[47]
GA/CTS/CNTPE	SW-AdSV	20–414	11.79	[48]
NPC-nafion/Bi/GCE	DP-ASV	7–70	0.80	[49]
BiNPs/GCE	DP-ASV, ABS	5.0–60.0	0.80	[50]
Diatomite-MPTMS/GCE	DP-ASV; ABS	20–150	6.90	[51]
AuNPs/GCE DP	ASV, ABS	—	11.20	[52]
BiF/Naf-ZIF-8/GCE	DP-ASV	12–100	4.16	This study

AuNPs: gold nanoparticles, GA: glutaraldehyde, CPE: carbon paste electrode, BiNPs: nanoparticles bismuth, MPTMS: 3-mercaptopropyl trimethoxysilane, GNFs: graphite nanofibers, CNTPE: carbon nanotube paste electrode, CTS: chitosan, SW-AdSV: square-wave adsorptive stripping voltammetry, DP-ASV: differential pulse-anodic stripping voltammetry, GCE: glass carbon electrode, NPC: nanoporous carbon material.