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. 2014 Apr 10;6(4):1295–1307. doi: 10.3390/toxins6041295

Figure 5.

Figure 5

Fluorescence excitation spectra of 1 µM OTA in the absence (a) (λem = 443 nm) and in the presence (b) (λem = 427 nm) of 50 mM MgCl2 in 0.03-M ammonium acetate buffers at increasing pH (RLU = Relative Light Unit).