Endrin, 100 µg/ml, Acetonitrile, 5ml

Ethyl-ß-D-6-glucuronide-d5, 1000µg base/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no.

Mass-Labelled PCDD Internal Standard Solution, 1.2ml, nonane

Urs-12(13)-ene, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 464-97-1