chromatograms
Figure 1: Example HPLC-UV chromatograms from studies on PPCPs and plants. Detection wavelength=200 nm. Panel A is a chromatogram of a blank plant (pinto bean) extract (water:acetonitrile). Panel B is a chromatogram of a blank plant (pinto bean) extract fortified with EE2 (17α-ethinyl estradiol) and triclosan at 1 μg/mL. Panel C is a chromatogram of dry plant (pinto bean) tissue fortified with EE2 and triclosan prior to extraction.