Fig. 4. Fluorescence responses of PB (10 μM) toward common metal ions (50 μM). Blue bars represent the fluorescence intensity ratio F425/F594. Each spectrum was acquired 2 h after metal ion addition at room temperature.
Fig. 4. Fluorescence responses of PB (10 μM) toward common metal ions (50 μM). Bluebars represent the fluorescence intensity ratio F425/F594. Each spectrum was acquired 2 hafter metal ion addition at room temperature.