2-Hydroxyatrazine, 100µg/mL in MeOH:AC (98:2),1ml

N-Nitroso-N-ethylaniline, 100μg/ml in MeOH, 5ml

Pesticide Standard, varied µg/mL in Acetone, 1ml

Chloridazon-methyl-desphenyl, 100 µg/ml, Acetonit