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. Author manuscript; available in PMC: 2009 Jun 1.
Published in final edited form as: Cancer Epidemiol Biomarkers Prev. 2008 Jun;17(6):1436–1439. doi: 10.1158/1055-9965.EPI-07-2926

Fig. 2.

Fig. 2

Chromatographic separation and selected reaction monitoring (SRM) chromatograms of AFB1-lys in an archival human serum sample. Top Panels. Archived human serum (139 pg AFB1-lys/mg albumin). A1. AFB1-lys SRM (m/z 457 to 394). A2. Internal standard channel. AFB1-D4-lys SRM (m/z 461 to 398). 100% relative abundance = 1 × 105. Bottom Panels. Non-detection of AFB1-lys in archived human serum. B1. AFB1-lys SRM (m/z 457 to 394). B2. AFB1-D4-lys SRM (m/z 461 to 398). 100% relative abundance = 3 × 104.