2,4,5-T-methyl ester, 10 µg/ml, Acetonitrile, 10

EPA 8041A Surrogate Standard S-4382 1mg/mL in isopropanol, 1 mL, 5 x 1mL, 5mL 2,4-Dibromophenol

4,4'-DDE, 100µg/mL, Solvent-dichloromethane, Unit 1mL, # of units-1, Cas.no. 72-55-9

2-Nitrobiphenyl-d9,1000 µg/mL,toluene,1mL,