Chlorinated Pesticides

beta-Cyfluthrin, 100µg/mL, Solvent-c.hexane or ac.nitrile, Unit 1mL, # of units-1, Cas.no. 68359-37-5

0.10M NaOH Standard Reagent

Perfluorononanesulfonic acid, 50µg/ml in MeOH, 1ml