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. Author manuscript; available in PMC: 2023 Aug 15.
Published in final edited form as: Birth Defects Res. 2022 Jun 10;114(14):797–804. doi: 10.1002/bdr2.2054

Figure 2. Chromatograms of Direct Biomarkers EtG and EtS in tooth powder.

Figure 2.

Extracted ion chromatograms from LC-IDMS/MS analysis of (A) EtG and EtS standard (0.1 ng/mL), (B) reagent blank, (C) extract fraction from prenatal dentine collected from case tooth, and (D) extract fraction from prenatal dentine from control tooth.