Fenthion-oxon-sulfone, 10.0 µg/ml, Acetonitrile,

1,2,3,8,9-Pentachloro[13C12]dibenzo-p-dioxin, 1.2ml x 50ug/ml, toluene

n-Undecane, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 1120-21-4

2,3,4,5-Tetrachlorophenol, 1000µg/mL, Solvent-isopropanol, Unit 1mL, # of units-1, Cas.no. 4901-51-3