2-Methylnaphthalene, 100 µg/ml, Acetonitrile, 1m

1H,1H,2H,2H-Perfluorohexanesulfonic acid, 10mg

4-Ethylbiphenyl, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 5707-44-8

Chlorpyrifos, 100µg/mL, Solvent-hexane, Unit 1mL, # of units-1, Cas.no. 2921-88-2