Native Stock PCDDs and PCDFs, 1.2ml, nonane

Perfluorooctane sulfonic acid , 50ug/ml, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 1763-23-1

Octachloro[13C12]dibenzo-p-dioxin, 1.2ml x 50ug/ml, toluene

Inorganic Mix #2 Conc. #1