The black bars represent the fluorescence emission of 2 μM R6G-NA solution with different competing metal ions. The red bars represent the change of the emission that occurs on the subsequent addition of 10 μM Hg2+ to the above solutions.Figure optionsDownload full-size imageDownload as PowerPoint slide
3.2. Spectroscopic properties of RB-NA
Fig. 3. The comparison of fluorescence response of RB-NA treated with same concentration of Hg2+ and Cr3+.