Isonoruron, 100 µg/ml, Acetonitrile, 1ml

1,2,3,5-Tetrachloro[13C6]benzene, 1.2ml x 100ug/ml, isooctane

3-Nitrophenanthrene, 10µg/mL in Cyclohexane, 10ml

2-Methoxy-1-propanol