Table 1 Optimization of DRZ-PM/silica carbon paste selective electrode and obtained the potentiometric response
No | *I.E | Composition (%) | *LOD mol L−1 | *RSD | *R (s) | ||
|---|---|---|---|---|---|---|---|
*C | *P | *S | |||||
1 | 3 (DRZ-PM) | 48.5 | 48.5 (DBP) | 47 ± 0.15 | – | 1.3 | 15 |
2 | 5 (DRZ-PM) | 47.5 | 47.5 (DBP) | 47 ± 0.15 | – | 1.4 | 10 |
3 | 10 (DRZ-PM) | 45 | 45 (DBP) | 48 ± 0.44 | – | 1.7 | 10 |
4 | 15 (DRZ-PM) | 42.5 | 42.5 (DBP) | 50 ± 0.12 | – | 1.2 | 9 |
5 | 20 (DRZ-PM) | 40 | 40 (DBP) | 57 ± 0.1 | 1 × 10−4 | 0.8 | 4 |
6 | 20 (DRZ-PM) | 40 | 40 (DOP) | 10 ± 0.1 | – | 1.2 | 9 |
7 | 20 (DRZ-PM) | 40 | 40 (DBP) | 57 ± 0.1 | 1 × 10−4 mol L−1 | 0.8 | 4 |
8 | 20 (DRZ-PM) | 40 | 40 (NPOE) | 43 ± 0.18 | 1 × 10−4 mol L−1 | 1.6 | 10 |
9 | 20 (DRZ-PM)with silica | 30 | 40 (DBP) | 59 ± 0.47 | 1 × 10−4 mol L−1 | 0.5 | 10 |
20 (DRZ-PM)with cyclodextrin | 30 | 40 (DBP) | 58 ± 0.57 | 5.96 × 10−5 mol L−1 | 0.5 | 10 | |