2,4-Dimethylphenol, 100 µg/ml, Methanol, 5ml

3,3',4,5,5'-Pentachloro[13C12]biphenyl, 1.2ml x 50ug/ml, nonane

Triasulfuron, 100 µg/ml, Acetonitrile, 5ml

3,6-Dimethylphenanthrene, 10mg