Solar UV-Assisted Pretreatment of River Water Samples for the Voltammetric Monitoring of Nickel and Cobalt Ultratraces
Figure 4
AdSV pseudopolarograms of nickel for Original Sample (a), 6-hour SoUV Sample (b), 12-hour SoUV Sample (c), and 6-hour UV Sample (d). The single stripping voltammograms were recorded within a potential range from −0.2 V to −1.2 V in the presence of NH3/NH4Cl buffer at pH 9.5 as supporting electrolyte and DMG-TEA as complexing agents while other instrumental operating parameters were kept constant as given in Table 1.
