Research Article
Mg(II) Selective PVC Membrane Electrode Based on Methyl Phenyl Semicarbazone as an Ionophore
Table 2
Effect of partially nonaqueous medium on the working of Mg2+ selective sensors (sensor no. 4).
| | Non-aqueous content % (v/v) | Working concentration range (m) | Slope (±0.1 mv/decade of activity) |
| | Methanol |
| | 10 | 1.0 × 10−8 to 1.0 × 10−1 | 28.4 | | 20 | 1.0 × 10−8 to 1.0 × 10−1 | 28.4 | | 30 | 1.0 × 10−8 to 1.0 × 10−1 | 28.2 |
| | Ethanol |
| | 10 | 1.0 × 10−8 to 1.0 × 10−1 | 28.4 | | 20 | 1.0 × 10−8 to 1.0 × 10−1 | 28.4 | | 30 | 1.0 × 10−8 to 1.0 × 10−1 | 28.2 |
| | Acetone |
| | 10 | 1.0 × 10−8 to 1.0 × 10−1 | 28.4 | | 20 | 1.0 × 10−8 to 1.0 × 10−1 | 28.4 | | 30 | 1.0 × 10−8 to 1.0 × 10−1 | 28.3 |
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