Solar UV Photooxidation as Pretreatment for Stripping Voltammetric Trace Metal Analysis in River Water

Table 1

Instrument operating parameters for simultaneous analysis of Zn(II), Cd(II), Pb(II), and Cu(II) in river water by differential pulse voltammetry.

1	Working electrode	HMDE
2	Calibration	Standard addition
3	Mode	DP
4	Purging time (s)	10 to 600 as stated in the text
5	Deposition potential (V)	−1.15
6	Deposition time (s)	120
7	Equilibration time (s)	10
8	Modulation time (s)	0.05
9	Interval time (s)	0.5
10	Start potential (V)	−1.15
11	End potential (V)	0.05
12	Scan rate (V/s)	0.01