Flurtamone, 100 µg/ml, Ethyl acetate, 1ml

Sodium(1H,1H,2H,2H-perfluorooctyl-1H,1H,2H,2H-perfluorodecyl)phosphate, 50µg/ml in MeOH, 1,2ml

Surrogate Mix ISO 27065 and ISO 18889, , , 500ml

4-Nitrophenol