Oxacillin

2,3',4,4',5-Pentachlorobiphenyl ether, 50µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 446254-80-4

2,4’-DDE, 1000µg/ml in Hexane, 1ml

Precision and Recovery Solution, 1.2ml, nonane