Robenidine hydrochloride

Ajmalicine, delphinidine chloride, dihydroberberine, emetine dihydrochloride, hordenine, leonurine, and muscimol were purchased from PhytoLab GmbH (Vestenbergsgreuth, Germany). Clenbuterol hydrochloride, fenpropimorph, halofuginone hydrobromide, robenidine hydrochloride, and sarafloxacin hydrochloride hydrate were obtained from Sigma Aldrich (Taufkirchen, Germany). Fumigaclavine A was purchased from AdipoGen AG (Liestal, Switzerland), and kukoamine A from AChemTek, Inc. (Worcester, MA, USA). Pyrraline was provided by PolyPeptide Group (Strasbourg, France). Roquefortine C was obtained from Cfm Oskar Tropitzsch GmbH (Marktredwitz, Germany) and salsolinol hydrochloride from ABCAM biochemical (Cambridge, U.K.).

Coccidiostats: maduramycin ammonium, narasin, salinomycin sodium salt, monensin sodium salt, lasalocid A sodium salt, robenidine hydrochloride, dinitrocarbanilide (marker for nicarbazin) and nigericin sodium salt were purchased from Sigma-Aldrich (St. Louis, MO, USA). The feed samples were kindly provided by the National Feed Laboratory in Lublin. Anhydrous sodium sulphate and magnesium sulphate were purchased from Alfa Aesar (Thermo Fischer, GmbH, Germany). 500 mg SPE columns (6 ml volume, Bakerbond spe WP-CBX) were provided by Avantor (Gliwice, Poland). HPTLC plates Silica gel 60 F254 and 98% formic acid solution were supplied by Merck (Darmstadt, Germany). Acetonitrile and methanol (both MS purity) were purchased from Biosolve Chemie (Dieuze, France), while for SFPE experiments: acetonitrile, methanol and toluene (all MS purity) were provided by POCH (Gliwice, Poland).