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. 2021 Sep 22;11(12):3293–3303. doi: 10.1002/2211-5463.13295

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© 2021 The Authors. FEBS Open Bio published by John Wiley & Sons Ltd on behalf of Federation of European Biochemical Societies. This article has been contributed to by US Government employees and their work is in the public domain in the USA

This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

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Fig. 1 — Spectral analysis of H₂O₂ oxidation of metHbS. Absorbance spectra were recorded before and after addition of 2 mm Na₂S to 60 μm metHbS and 60 μm metHbS treated with 300 μm CA in the presence of 150 μm H₂O₂. Panel A shows the difference in the amount of sulfheme concentration in the presence and absence of CA. Panel B shows sulfheme concentration versus different H₂O₂ ratios to Hb. Error bars represent standard deviation.