2,2',3,5-Tetrachlorobiphenyl,100 µg/mL,isooctane,1mL,

Chlorpyrifos, 100 µg/ml, Toluene, 1ml

PAH-Mix 4, 10.0 µg/ml, Acetonitrile, 10ml

Sodium perfluoro-3-methylheptanesulfonate, 1.2ml x 50ug/ml, methanol