Fig. 5. (A) Extracted ion chromatogram for prostaglandin E2 (PGE2) and prostaglandin D2 (PGD2). Liquid chromatography (LC) separation was able to successfully differentiate these isobaric lipids. (B) Total ion chromatogram observed from eicosanoid profiling using LC-mass spectrometry (MS)/MS. cps, counts per second.
