Disposable Carbon Dots Modified Screen Printed Carbon Electrode Electrochemical Sensor Strip for Selective Detection of Ferric Ions

Table 1

Relative error in the determination of Fe³⁺ ions concentration in the presence of other metal ions at 10 ppm.

Metal ions	Relative error of Fe^3+ ions concentration (%)
Ba(II)	2.49
Ca(II)	3.48
Cd(II)	7.68
Co(II)	0.50
Hg(II)	0.81
K(I)	6.89
Na(I)	14.85
Sn(II)	18.68
Zn(II)	1.81