1-Ethyl-2-pyrrolidinone, 1000µg/ml in MeOH, 1ml

2,3',4,4',6-Pentachlorobiphenyl, 100 µg/mL, Solvent-Isooctane, Unit 1mL, # of units-1, Cas.no. 56558-17-9

EPA Method 8021B Internal Standard

2,4,5-T methyl ester