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Total ion chromatogram of CL oxidized by room air (A), and MS and MS/MS spectra of peaks at 23–24 min (B) and at 17–18 min (C). The major species in the chromatogram peak at 23–24 min have m/z 1479 (B) and at 17–18 min m/z 1511 (C), corresponding to bis monohydroperoxides and monohydroperoxides, respectively. The retention times of all species were delayed by ∼1 min compared with the chromatographic peaks of CL oxidized by 1O2 due to a different eluent batch.
