Figure 1. Effect of CO atmosphere on the interaction of H₂O₂ with ferric Hb.

Light absorption spectra of the reaction mixtures at time zero (narrow lines) and following two hours of incubation (heavy lines) are depicted. A – experimental mixture containing ferric Hb and H₂0₂ under CO atmosphere (∼1 mM in water phase); B – control reaction mixture without H₂O₂; C – control reaction mixture in which CO atmosphere was replaced by inert gas; D – difference spectra (ΔOD) of time zero and following 2 hours of A, B and C (marked by small letters a, b and c). Note scale differences of Soret and visible regions.