Chlormephos, 10.0 µg/ml, Ethyl acetate, 10ml

Perfluoroheptane sulfonic acid, potassium salt,50 µg/mL,MeOH,1mL,

Methyltin trichloride, 1000 µg/ml, Methanol, 5ml

Mass-Labelled PCDF Internal Standard Solution, 1.2ml, nonane