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. Author manuscript; available in PMC: 2015 Oct 1.
Published in final edited form as: Bioanalysis. 2014 Dec;6(23):3081–3089. doi: 10.4155/bio.14.254

Figure 2. Chromatograms of blank plasma and plasma spiked with PQ at 0.5 ng/mL and 1.5 ng/mL.

Figure 2

Elevated residual PQ peak was observed in Dblk after ULOQ, indicating carryover in the assay. No carryover was found for the IS.

Blk: blank plasma processed with IS; Dblk: blank plasma processed without IS; IS: Internal standard; PQ: Piperaquine; ULOQ: Upper limit of quantification.