Naled, 100 µg/ml, Acetonitrile, 5ml

Perfluoro-n-[1,2-13C2]undecanoic acid, 1.2ml x 50ug/ml, methanol

1,1-Dichloro-2,2-bis(4-chlorophenyl)ethane, 1.2mL x 100ug/mL, nonane

2,4-Dibromophenol, 100 µg/ml, Methanol, 1ml