Research Article
Gold–Copper Film Electrode for Voltammetry Determination of Mercury in Water
Table 7
Influence of Cl
–, SO
42–, and PO
43– on the
of Hg.
| | Cl– | CCl–, (mg/L) | 0 | 200 | 400 | 600 | 800 | 1000 | | (μA) | 1.2 | 1.1 | 1.2 | 1.3 | 1.2 | 1.2 | | RSD (%, ) | 1.3 | 5.7 | 2.0 | 4.4 | 3.4 | 6.2 | | (%) | 0 | 8.3 | 0 | 8.3 | 0 | 0 |
| | SO42– | CSO42–, (mg/L) | 0 | 200 | 400 | 600 | 800 | 1000 | | (μA) | 1.5 | 1.3 | 1.2 | 1.2 | 1.2 | 1.3 | | RSD (%, ) | 3.2 | 1.6 | 1.7 | 5.3 | 2.7 | 2.6 | | (%) | 0 | 13.3 | 20 | 20 | 20 | 13.3 |
| | PO43– | CPO43–, mg/L | 0 | 20 | 40 | 60 | 80 | | | (μA) | 1.2 | 1.2 | 1.3 | 1.5 | 1.7 | | | RSD (%) | 6.1 | 1.0 | 2.3 | 1.6 | 7.5 | | | (%) | 0 | 0 | 8.3 | 25 | 41.7 | |
|
|
Conditions: μg/L; other conditions as in Figure 1. |
