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Voltammetric behavior of the studied standard polyphenols in tartaric acid buffer (pH 3.6) with SWCNT-SPCE and GCE for a concentration of 0.1 mM.
| Standards | Potential (mV) | |||
|---|---|---|---|---|
| SWCNT-SPCE (vs. Ag) | GCE (vs. Ag/AgCl-KCl 3M) | |||
| Ep,a1 | Ep,a2 | Ep,a1 | Ep,a2 | |
| Catechin | 132 | 468 | 483 | 826 |
| Caffeic acid | 139 | / | 445 | / |
| Gallic acid | 122 | 465 | 472 | 766 |
| Oenin chloride | 377 | 669 | 652 | 987 |
| Rutin | 201 | 460 | 260 | 898 |
GCE: Glassy Carbon Electrode; SWCNT-SPCE: Single Walled Carbon Nanotubes modified Screen Printed Carbon Electrodes.
