4-(tert-Octyl)phenol, 1000µg/ml in MeOH, 1ml

2,2',3,4,4',5'-Hexachloro[13C12]biphenyl, 1.2ml x 50ug/ml, nonane

Ketoprofen, 100 µg/ml, Methanol, 1ml

Heptachlor, 100 µg/ml, Acetonitrile, 1ml