Atrazine, 100 µg/ml, Acetonitrile, 5ml

N-Nitroso-N-methylurea, 500µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 684-93-5

Chlorpyrifos, 100 µg/ml, Ethyl acetate, 5ml

3-Methyl-1-butyl acetate,1000 µg/mL,MeOH,1mL