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. 2012 Apr 6;7(4):e34157. doi: 10.1371/journal.pone.0034157

Figure 6. Identification of a selected marker (m/z 180).

Figure 6

(A) Extracted ion chromatogram (EIC) of m/z 180; (B) MS/MS spectrum of the ion; (C) MS/MS spectrum of a commercial standard hippuric acid. The collision energy was 15 V.