Etrimfos, 10.0 µg/ml, Cyclohexane, 10ml

2,3',4',5-Tetrachloro[13C12]biphenyl, 1.2ml x 50ug/ml, nonane

PAH - Mix 15 (2005/108/EC), 10µg/ml in Acetonitrile, 5ml

Citrate-Extraction-Mix