Atrazine-desethyl, 10.0 µg/ml, Acetonitrile, 10m

n-Perfluorooctanoic acid,neat,neat,100mg,

Method 200.8 / 1638 / 1640 Internal Standard, in 2%-HNO3/Water, 4x25ml

PAH-Mix 9 deuterated, 10 ng/µl, 10ml