Figure 10-7. APPI-MS of soybean oil in dietary supplement containing vitamin D₃ from fish oil, on QTrap 4000 hybrid mass spectrometer. (A) Total ion current chromatogram (TIC); (B) selected ion monitoring (SIM) of vitamins D₂ and D₃; (C) mass spectrum of CyCyCa; (D) CaCaCy and vitamin D₂ (internal standard); (E) LnLP; (F) OLO; (G) OLP; and (H) SLS + PPP + PLA. DBP, dibutyl phthalate; DOP, dioctyl phthalate; NDP, nonyl, decyl phthalate; other abbreviations are given in Fig. 10.6. APPI-MS, atmospheric pressure photoionization mass spectrometry. Phthalates from new Photospray source.

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