2-Hydroxyibuprofen, 100 µg/ml, Acetonitrile, 1ml

Arochlor 1248 , 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-5, Cas.no. 12672-29-6

PAH Mix 525, 100µg/mL in Acetone, 1ml

1,2,3,4,7-Pentachlordibenzo-p-dioxin,50 µg/mL,n-nonane,1mL,