4-Methyl-2-pentanone, 100µg/mL in MeOH, 1ml

Dimethachlor ESA sodium salt, 100µg/ml, Acetonitrile, 1ml

11H-Perfluoroundecanoic acid, 50µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 1765-48-6

Benzo[a]pyrene, 25mg