Extended Calibration/Low Level Solution , 500ul, nonane

O,O-Dimethylthiophosphate, sodium salt, 1000µg/ml in MeOH, 1ml

Atrazine-desethyl 100 µg/mL in Acetonitrile, 1ml

Dibenzo[a,c]pentacene, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 216-08-0