Ethanol standard in serum,0.5g/L,serum, 1.5mL

Permethrin (mix isomers), 1000μg/ml in MeOH, 1ml

1,1,1,3-Tetrachlorooctane, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 18088-13-6

N-Nitrosodiethanolamine