2,4-Dinitrophenol, 100 µg/ml, Acetonitrile, 5ml

1,2,4,7,9-Pentachloro[13C12]dibenzo-p-dioxin, 1.2ml x 50ug/ml, toluene

3,3',5,5'-Tetrabromobisphenol A bisacrylate,50 µg/mL,toluene,1mL,

QC Standard 2