“…These methods include liquid chromatography (Chang, Chou, & Hwang, 2005;Meng et al, 2012;Turberg, Macy, Lewis, & Coleman, 1994), gas chromatography (Bocca, Fiori, Cartoni, & Brambilla, 2003), liquid chromatography tandem mass spectrometry (LC-MS/MS) (Shishani, Chai, Jamokha, Aznar, & Hoffman, 2003;Wu, Liu, & Peng, 2014), gas chromatography-mass spectrometry (Montrade, Lebizec, Monteau, & Andre, 1995;Wang, Li, Zhang, & Shen, 2006), enzyme-linked immunoassay (Hahnau & Julicher, 1996;Harkins, Woods, Lehner, Fisher, & Tobin, 2001;Pinheiro et al, 2008), colloidal gold test strip (Khamta, Pattarawarapan, Nangola, & Tayapiwatana, 2009;Zhang et al, 2009), surface plasmon resonance immunosensors (Traynor, Crooks, Bowers, & Elliott, 2003), and electrochemical immunosensors (He, Wang, Zhang, & Yang, 2009). Table 1 Chemical formula, accurate mass, retention time and characteristic fragment ions of 32 b-agonists.…”