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. Author manuscript; available in PMC: 2021 Oct 20.
Published in final edited form as: Anal Chem. 2020 Oct 1;92(20):13864–13870. doi: 10.1021/acs.analchem.0c02569

Figure 4.

Figure 4.

EPR data for the reaction between myoglobin microcrystals and 114 mM azide. EPR intensities are shown in relative units. (a) EPR spectra of the high- and low-spin crystal standards. (b) Time-resolved EPR spectra of the myoglobin/azide reaction normalized for myoglobin concentration (see the Supporting Information). The spectra for timepoints with duplicate measurements are averaged. (c) Percent of the initial state remaining as a function of time for the reaction in microcrystals (circles) and solution at the same azide concentration for comparison (black triangle). The 2× label indicates two overlapping datapoints at 250 ms.