2-n-Octylphenol, 100 µg/ml, Acetone, 1ml

1,2,4,7-Tetrachloronaphthalene, 1.2mL x 50ug/mL, nonane

Arochlor 1221 , 10µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 11104-28-2

Hexavalent Chromium (Cr 6+)