Oxygen consumption during the autoxidation of: (black) cumene (1.8 M) initiated by AIBN (0.05 M) at 30 °C in dry acetonitrile, or (red) with addition of 1% wt water (A,C), and (blue) during the autoxidation of THF (3.1 M) initiated by AAPH (25 mM) in phosphate buffer (0.1 M pH = 7.4) at 30 °C (B,D) without inhibitors (dash line); or in the presence of AH2 2.5 × 10−5 M (solid line, A); or of AH2 2.2 × 10−5 M (solid line, B); or in the presence of HNT/AH2 0.18 mg/mL (corresponding to AH2 2.5 × 10−5 M, solid line, C); or in the presence of HNT/AH2 0.16 mg/mL (corresponding to AH2 2.2 × 10−5 M, solid line, D).