Figure 3.
Representative MRM chromatograms of (A) BNAP derivatives and (B) corresponding IS (tagged with *): 1: 3-OH KYN; 2: AA; 3: 3-OH AA; 4: 5-OH IAA; 5: I3LA; 6: PA; 7: XA; 8: QA; 9: NA; 10: Trp; 11: KA.
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