Table 1.

Rhodamine B fluorescence lifetimes [ns]

	10−2 M	10−3 M	10−4 M	10−5 M	10−6 M
Water	[see Table 2]	1.49 ± 0.04	1.72 ± 0.04	[see Table 2]	[see Table 2]
Ethanol	1.95 ± 0.05	2.68 ± 0.08	2.71 ± 0.06	2.72 ± 0.06	2.69 ± 0.07
Methanol	1.68 ± 0.05	2.42 ± 0.08	2.43 ± 0.08	2.41 ± 0.07	2.32 ± 0.06