2-Imidazolidone, 100 µg/ml, Acetonitrile, 5ml

1,2,4,5,8-Pentachloro(13C10)naphthalene, 1.2mL x 50ug/mL, nonane

4-Cumylphenol

4-Nonylphenol (techn.), 100µg/ml in MeOH, 5ml