Valeraldehyde-DNPH, 100µg/ml in Acetonitrile, 1ml

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

3,3'-Dimethyl-4,4'-diaminodiphenylmethane,100 µg/mL,acetonitrile,1mL,

4-Chloroaniline, 100 µg/ml, Methanol, 5ml