Phoxim, 100 µg/ml, Ethyl acetate, 5ml

Danofloxacin mesylate, 100 µg/ml, Methanol, 1ml

Quinoxaline-2-carboxylic acid

Sodium 1H,1H,2H,2H-perfluoro-1-[1,2-13C2]-hexane sulfonate (4:2), 50µg/ml in MeOH, 1,2ml