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Chemical speciation of MeHg+ and Hg2+ in aqueous solution and HEK cells nuclei by means of DNA interacting fluorogenic probes

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Academic year: 2020

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Fig. 1 Observable colours under 366 nm UV light. The samples contain BD116 (A) or BD119 (B) 10 4 M solutions in MeOH –H 2 O 20 : 80 mixed with 2 equivalents of common cations as 5  10 3 M solutions in water
Fig. 2 (A) Emission intensity spectra ( l exc ¼ 350 nm) and (B) titration pro file (l em ¼ 480 nm) of BD116, 2.5  10 5 M in MeOH –H 2 O 20 : 80, with several additions of (1) Hg 2+ or (2) MeHg +
Table 1 Apparent binding constant, K, and formation and dissociation kinetic constants, k 1 and k 2 , obtained for the BD116/Hg 2+ and BD116/
Fig. S90A and B (ESI, p. S58†) showed that, in the absence of MeHg + , the relative length of DNA remained the same over the
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