Fig. 5From: Rapid screening and identification of bioactive compounds specifically binding to beta 2-adrenoceptor from San-ao decoction using affinity magnetic fine particles coupled with high-performance liquid chromatography–mass spectrometryChromatograms of terbutaline and salbutamol in the collected supernatant from Fe3O4@NH2 FPs (black curve) and Fe3O4@β2-AR FPs (red curve) of the competitive displacement. a Terbutaline and salbutamol standards. b Loading salbutamol to Fe3O4@β2-AR FPs. c Washing unbound salbutamol by ammonium acetate. d Displacing the bound salbutamol from Fe3O4@β2-AR FPs by terbutalineBack to article page