D4-Acetaminophen, 100 µg/ml, Acetonitrile, 1ml

Mass-Labelled PCB Congener Solution/Mixture, 5µg/ml in Nonane, 1,2ml

1,2,4,6-Tetrachloronaphthalene, 1.2mL x 50ug/mL, nonane

Surrogate Standard Solution, 1.2ml, nonane