Gold–Copper Film Electrode for Voltammetry Determination of Mercury in Water

Table 1

The effect of and on differential pulse anodic stripping currents of Hg.

(mg/L)	(mg/L)	(μA)	RSD (%, )
0	0.20	-	-
0.10	0	1.07	9.0
0.10	0.05	1.34	1.9
0.10	0.10	1.25	2.6
0.10	0.20	1.18	3.0
0.20	0	1.84	6.1
0.20	0.05	2.56	2.0
0.20	0.10	2.18	3.1
0.20	0.20	1.79	2.8
0.30	0	2.72	3.2

No stripping peak of Hg appeared. Conditions:  μg/L;  M; -0.30 mg/L; -0.20 mg/L; other conditions as in Figure 1.