Table 2. Fluorescence Lifetime Parameters (λex = 376.0 nm) of ANS at 298 Ka.
| systems | τ1 (a1) (ns) | τ2 (a2) (ns) | τ2 (a3) (ns) | τavg (ns) |
|---|---|---|---|---|
| water | 0.234 (0.997) | 4.61 (0.003) | 0.247 | |
| CM | 0.239 (0.965) | 4.61 (0.019) | 13.66 (0.016) | 0.536 |
| CM + MA | 0.236 (0.938) | 5.43 (0.038) | 13.28 (0.024) | 0.746 |
| CM + SA | 0.244 (0.926) | 5.72 (0.048) | 14.13 (0.026) | 0.866 |
| CM + AA | 0.234 (0.947) | 4.86 (0.031) | 12.85 (0.022) | 0.655 |
| CM + OA | 0.219 (0.981) | 3.06 (0.012) | 10.39 (0.008) | 0.335 |
| CM + LA | 0.226 (0.980) | 4.25 (0.012) | 11.66 (0.008) | 0.366 |
a
Experimental errors in the determination of lifetime ±5%.