Table 2. Electrochemistry of DA on the Electrodes with Different Fiber Lengths Determined from CV Measurements.
| slope
of log Ipa vs log v |
|||||||||
|---|---|---|---|---|---|---|---|---|---|
| electrode | Ipa (μA) | onset potential (mV) | Epa (mV) | ΔEp (mV) | (100 μM) | (5 μM) | linear range (μM) | sensitivity (A M–1 cm–2) | LOD (nM) |
| CNF-30mins | 5 ± 1 | 135 ± 1 | 182 ± 4 | 33 ± 3 | 0.70 ± 0.02 | 0.92 ± 0.09 | 0.75–75 | 1.090 | 319 |
| CNF-10mins | 4 ± 0 | 123 ± 4 | 182 ± 9 | 34 ± 1 | 0.61 ± 0.05 | 0.85 ± 0.05 | 0.75–75 | 0.079 | 221 |
| CNF-5mins | 4 ± 1 | 125 ± 2 | 179 ± 1 | 31 ± 1 | 0.62 ± 0.04 | 0.80 ± 0.03 | 1–75 | 0.080 | 254 |
| CNF-1min | 3 ± 0 | 123 ± 3 | 182 ± 3 | 42 ± 4 | 0.53 ± 0.00 | 0.73 ± 0.04 | 0.75–75 | 0.056 | 750 |