Under the optimum experimental conditions, the electrochemical performance of the DPASV for the determination of nickel using paper-based devices coupled with electrochemical detection on screen-printed carbon electrode was studied.
A 50 mL of solution was dropped on the hydrophilic area of paper-based device. Peak potential of nickel was obtained in potential region between −0.20 and −0.10 V (versus Ag/AgCl).