Chlorpyrifos, 100 µg/ml, Ethyl acetate, 5ml

Perfluorobutyric acid, 50µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 375-22-4

Mass-Labelled PCDD Internal Standard Solution, 1.2ml x 40ng/ml, nonane

1,1,3,3,5,5-Hexamethyltrisiloxane