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. 2015 Aug 10;5:12892. doi: 10.1038/srep12892

Figure 1. PIS mass spectrometric analysis to screen for PHT biosynthetic intermediates.

Figure 1

(A) high resolution mass spectrum of PHTs (inset is fragmentation pattern of PHT); (B) tandem mass (MS2) spectrum of PHTs; (C) tandem mass (MS3) spectrum of daughter ions with m/z ratio at 452.3 in panel (B); (D) chromatogram of PIS mass spectrometric analysis; (E) high resolution mass spectrum of novel ions with m/z ratio at 417.2568 (inset is fragmentation pattern of Cit-Ala-hArg); (F), tandem mass spectrum of ions with m/z ratio at 417.2568.