Using Electrode Made of Carbon Nanotubes and Bismuth Oxide for the Determination of Metal Concentration by Anodic Stripping Voltammetry

Table 3

Pb(II) content in water samples identified by the DP-ASV method (using the CPE modified with Bi₂O₃ using CNTs) and the GF-AAS method.

Samples	GF-AAS	DP-ASV	Recovery (%)	texp
1	1.86	1.93	96.37	2.52
2	1.62	1.76	108.64	2.35
3	1.47	1.45	98.64	1.68

Note. All concentrations are expressed in μg·L⁻¹; the result of the DP-ASV method is the average value of 5 measurements.