Di-n-octyltin dichloride, 1000 µg/ml, Methanol,

Primisulfuron-methyl, 100 µg/ml, Acetonitrile, 5

PCB No. 118, 10µg/mL in Isooctane, 10ml

4-n-Nonylphenol D8 (ring D4-ethylD4), 100 ng/µl, 1.1ml