Compound | Conc. ppm | Rct Ω cm2 | Cdl *10 4 F cm−2 | θ | % IEEIS |
1 M HCl | - - - | 129.4 | 0.689 | ----- | ----- |
Turmeric extract | 50 | 189.5 | 0.962 | 0.317 | 31.7 |
100 | 208.7 | 0.927 | 0.380 | 38.0 | |
150 | 244.3 | 0.885 | 0.470 | 47.0 | |
200 | 247.5 | 0.873 | 0.477 | 47.7 | |
250 | 253.1 | 0.657 | 0.489 | 48.9 | |
300 | 261.0 | 0.638 | 0.504 | 50.4 |