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| Figure 2: Typical MRM chromatograms of fenspiride (left panel) and bupivacaine (IS, right panel) in human plasma: (A) blank plasma sample; (B) blank plasma sample spiked with fenspiride (2 ng/ml, LLOQ) and IS (125 ng/ml); (C) plasma sample from a volunteer at 12 h after administration of Inspirone® tablets (427 ng/ml of fenspiride found). |
