4,4'-DDE, 100 µg/ml, Toluene, 5ml

Hexamethylphosphoric Triamide, 5ml

1H,1H,2H,3H-Perfluorohex-2-en-1-ol , 50µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 37759-88-9

EPA Method 531.1 Individual Analytes