Methylparaben, 100 µg/ml, Acetonitrile, 5ml

1,3,7,8-Tetrachlorodibenzo-p-dioxin, 1.2ml x 50ug/ml, nonane

PCB No. 156, 10µg/ml in Isooctane, 10ml

4-n-Butyldibenzothiophene, 500µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 147792-33-4