Atrazine, 10.0 µg/ml, Acetonitrile, 10ml

Desmedipham, 100µg/ml in MeOH, 5ml

L-(+)-Lactic Acid-13C3 Sodium Salt, 5mg

2,3,4,4',5-Pentachlorobiphenyl, 100 µg/mL, Solvent-Isooctane, Unit 1mL, # of units-1, Cas.no. 74472-37-0