High Sensitive Sensor Fabricated by Reduced Graphene Oxide/Polyvinyl Butyral Nanofibers for Detecting Cu (II) in Water

Table 2

Anti-interference of GCE/PRGNF.

Concentration (mol⋅L^−1)	Species	Interference (%)
3.0 × 10^−4	Na^+	−1.6
	K^+	−0.23
	Ca^2+	−2.7
	Mg^2+	+0.2
6.0 × 10^−5	Mn^2+	−3.1
	Cd^2+	−2.4
1.2 × 10^−5	Pb^2+	−5.1
	Zn^2+	−3.2