1,2-Dichloroethane, 10µg/ml in MeOH, 10ml

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

N-Nitrosodi-n-butylamine, 1000μg/ml in MeOH, 1ml

Ethanol standard in water,4.0g/L,water, 1.5mL