Figure 2: MRM ion chromatogram of ticlopidine (m/z 264.04 to m/z 154.20) and clopidogrel (IS, m/z 322.40 to 212.20) in (A) a blank plasma sample, (B) a zero sample, (C) a LLOQ (2 ng/mL) sample, and (D) a plasma sample from a healthy volunteer at 1.5 hours after oral administration of ticlopidine 250 mg.