Research Article
Mg(II) Selective PVC Membrane Electrode Based on Methyl Phenyl Semicarbazone as an Ionophore
Table 1
Composition of PVC membrane of (MPS) and performance characteristics of Mg2+-selective sensors based on them.
| | Sensor no. | Component in membranes (w/w) |
Working Conc range (M) |
Slope (±mv/decade of activity) | | MPS | PVC | NaTBP | DPB | NB | NTBP |
| | 1 | 5 | 30 | 5 | | | | 1.0 × 10−5 to 1.0 × 10−1 | 35.5 | | 2 | 5 | 30 | 5 | 60 | | | 1.0 × 10−4 to 1.0 × 10−1 | 34 | | 3 | 5 | 30 | 5 | | 60 | | 1.0 × 10−5 to 1.0 × 10−1 | 22 | | 4 | 5 | 30 | 5 | | | 60 | 1.0 × 10−8 to 1.0 × 10−1 | 28.4 |
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