Methacrylic acid-methyl ester, certified, 0.25g

6-Hydroxy-2,2',4,4'-tetrabromodiphenyl ether, 1mg

1,2,7,8-Tetrachloro[13C12]dibenzo-p-dioxin, 1.2ml x 50ug/ml, toluene

PCB-Mix 3, 10µg/mL in Isooctane, 1ml