Solar UV-Assisted Pretreatment of River Water Samples for the Voltammetric Monitoring of Nickel and Cobalt Ultratraces
Figure 2
Standard addition calibration curves for nickel (II) in (a) Original Sample, (b) 6-hour SoUV Sample, (c) 12-hour SoUV Sample, and (d) 6-hour UV Sample. Added standard concentrations of nickel were 5, 10, and 15 μgL−1.
