Perfluoro-n-butanoic acid, 50µg/ml in MeOH, 1,2ml

2,3',4,4',5-Pentachlorobiphenyl, 100 µg/mL, Solvent-Isooctane, Unit 1mL, # of units-1, Cas.no. 31508-00-6

Atrazine-2-hydroxy, 100µg/mL in MeOH, 1ml

EPA Method 608 Pesticides