1-Chloro-1,1-difluoroethane, 20mg/mL in MeOH, 1ml

3,3',4-Trichlorobiphenyl, 100 µg/mL, Solvent-Isooctane, Unit 1mL, # of units-1, Cas.no. 37680-69-6

Ammonium Standard: NH4+, 1000µg/ml in Water, 100ml

Demeton O, 100µg/mL, Solvent-c.hexane or ac.nitrile, Unit 1mL, # of units-1, Cas.no. 298-03-3