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. Author manuscript; available in PMC: 2015 Nov 1.
Published in final edited form as: Anal Bioanal Chem. 2015 Apr 2;407(14):4045–4052. doi: 10.1007/s00216-015-8641-2

Figure 2.

Figure 2

Analysis of [13C6]-phenylalanine enrichment with the high-resolution orbitrap MS. Data shown represents the 180 minute time point of visit one. a) Base peak chromatogram from the targeted MS/MS of m/z 228.17, the m+6 precursor ion. b) Extracted ion chromatogram from a) showing m/z 126.1008, the m+6 product ion, at 5 ppm mass accuracy. c) Extracted ion chromatogram from a) showing m/z 126.1008 at 500 ppm mass accuracy. d) Fragmentation spectrum from the targeted MS/MS of m/z 228.17 at 8.22 min.