Pentachlorophenol, 10µg/mL in MeOH, 10ml

Difenoconazole, 100 µg/ml, Acetonitrile, 5ml

n-Hydrocarbon Standard (C5-C18), 2000µg/ml in MeOH, 1ml

Benzo(e)pyrene,2000µg/ml in methylene chloride,1ml