Fig. 4From: An efficient HILIC-MS/MS method for the trace level determination of three potential genotoxic impurities in aripiprazole active drug substanceMRM chromatograms of PGI-1, PGI-2, and PGI-3. a Blank. b Un-spiked PGI standard at 50 ppm. c PGI standard at 50 ppm spiked with APZBack to article page