Figure 2: LC-MS/MS reconstituted ion chromatograms displaying analyte-specific quantitation and qualifier ions monitored for (A) a tissue extract from a fish (Lepomis sp.) collected in Pecan Creek and (B) an extract from clean’ tissue spiked with known amounts of diphenhydramine (1.6 ng/g), diltiazem (2.4 ng/g), carbamazepine (16 ng/g), and norfluoxetine (80 ng/g). The higher m/z fragment is more intense in all cases. (Reproduced with permission from (64), © American Chemical Society).