Caffeine, 1000µg/ml in MeOH, 1ml

Chlorfluazuron, 100 µg/ml, Acetonitrile, 1ml

3,3',4,4'-Tetrabromodiphenyl ether, 1.2ml x 50ug/ml, nonane

PAH - Mix 18, 100µg/ml in Acetonitrile, 5ml