Fig. 1: Chemical characteristics of oxidized cooking oil films.
From: Fast autoxidation of unsaturated lipid films on indoor surfaces
a Direct infusion ESI(+)-Orbitrap-MS spectra of fresh cooking oil film, film irradiated for 21 h in the flow reactor or aged in the dark indoor environment for 4 days. The intensity of ions with m/z > 910 was multiplied by 3. TG(52:n), n = 2, 3, 4. For this figure and others in the paper, note that +1 O, +2 O, … refer to the additions of 1, 2, … oxygen atoms to the reactant molecule. b TSQ Endura neutral loss scan MS/MS spectrum of indoor aged oil film (5.9 days). TG(54:n), n = 3, 4, 5, 6. The peaks were identified as ROOH ions due to a neutral loss of 51 Da (H2O2 + NH3)27,38. c, d, Concentration time profiles of ROOH formed from cooking oil films under irradiation in the flow reactor or placement in the dark indoor environment. Source data are provided as a Source Data file.
