Isoxaben, 100 µg/ml, Acetonitrile, 5ml

Endrin ketone, 100 µg/ml, Acetonitrile, 1ml

PCB No. 180, 100µg/ml in Isooctane, 1ml

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