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. Author manuscript; available in PMC: 2016 Jul 18.
Published in final edited form as: Inorg Chem. 2016 Jun 27;55(14):6892–6901. doi: 10.1021/acs.inorgchem.6b00395

Figure 2.

Figure 2

MS spectra of cold labeling solutions. Labeling conditions: (A) chelator 6, Cu(II) and Fe(III) were mixed at molar ratios 6:1:1 in 0.1 M NH4OAc buffer (pH 4) and incubated at 70 °C for 30 min; (B) chelator 6, Cu(II) and Fe(III) were mixed at molar ratios 1:1:10 in 0.1 M NH4OAc (pH 4).