alpha-Endosulfan, 100 µg/ml, Methanol, 1ml

Native Chlorinated Methoxybiphenyl Solution/Mixture, 1.2ml, nonane

Mass-Labelled PCDD Internal Standard Solution, 1.2ml x 200ng/ml , nonane

Ranitidine-HCl, 100µg/ml in Acetonitrile, 5ml