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Fig. 3 The response performance studies of NAHCP toward H2S. (a) The selectivity test; (b) the competitive experiment; (c and d) NAHCP for the response performance of various potential interferences on the silica gel plate, bright-field image and 365 nm UV-irradiated fluorescence image, respectively. (e and f) The fluorescence ratio changes (I533/I0) of NAHCP (10 μM) over time and pH in the absence (0 μM) or presence of H2S (100 μM), λex = 420 nm, λem = 533 nm, and the excitation and emission slits were 5 nm, respectively, n = 3.
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