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. 2017 Dec 6;17(12):2826. doi: 10.3390/s17122826

Figure 10.

Figure 10

Steady-state fluorescence measurements over time (excitation 380 nm and emission 500 nm) of the dry optical fiber with six layers, followed by three cycles of Hg(II) aqueous solutions with the following concentrations: 0, 0.01, 0.05, 0.1, 0.799, 1.99, and 2.69 μM. (1) The fiber was immersed in water; (2) removed from water; and (3) immersed in Hg(II) 0.01 μM. Reprinted from [108] with permission from Elsevier.