Table 2. Impedance Parameters Obtained from the EIS Curves for BTB and DAB Inhibitors.
| inhibitor | concentration (ppm) | Rf (Ω) | QF (μF/cm2) | n1 | Qdl (μF/cm2) | Rct(KΩ/cm2) | n2 | θ | IE % |
|---|---|---|---|---|---|---|---|---|---|
| BTB | 0 | 52.6 + 2 | 132.1 + 1.1 | 0.87 + 0.02 | 538.1 | 1.659 + 0.10 | 0.83 + 0.05 | ||
| 50 | 128.9 + 3 | 87.3 + 0.9 | 0.92 + 0.03 | 40.90 | 3.112 + 0.017 | 0.88 + 0.03 | 0.4669 | 46.69 | |
| 100 | 286.2 + 5 | 63.7 + 0.8 | 0.94 + 0.01 | 56.45 | 3.995 + 0.015 | 0.91 + 0.02 | 0.5847 | 58.47 | |
| 150 | 423.3 + 6 | 52.6 + 0.7 | 0.96 + 0.04 | 23.41 | 4.905 + 0.014 | 0.92 + 0.01 | 0.6617 | 66.17 | |
| 200 | 560.7 + 4 | 46.8 + 0.8 | 0.97 + 0.01 | 4.641 | 11.03 + 0.013 | 0.93 + .01 | 0.8495 | 84.95 | |
| 250 | 592.5 + 7 | 37.2 + 0.4 | 0.98 + 0.01 | 143.9 | 25.51 + 0.012 | 0.93 + 0.01 | 0.9349 | 93.49 | |
| DAB | 50 | 117.8 + 2 | 76.8 + 0.8 | 0.88 + 0.03 | 228.8 | 2.474 + 0.016 | 0.85 + 0.05 | 0.3294 | 32.94 |
| 100 | 187.5 + 4 | 58.1 + 0.6 | 0.89 + 0.01 | 315.5 | 2.541 + 0.017 | 0.87 + 0.07 | 0.3471 | 34.71 | |
| 150 | 238.1 + 6 | 49.6 + 0.5 | 0.90 + 0.04 | 109.3 | 2.609 + 0.013 | 0.89 + 0.02 | 0.3641 | 36.41 | |
| 200 | 302.7 + 7 | 39.5 + 0.4 | 0.92 + 0.02 | 43.77 | 4.096 + 0.012 | 0.90 + 0.01 | 0.5949 | 59.49 | |
| 250 | 327.9 + 8 | 27.4 + 0.3 | 0.92 + 0.01 | 100.1 | 4.446 + 0.011 | 0.90 + 0.01 | 0.6268 | 62.68 |