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

1,2-Dichloroundecane, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 81246-86-8

Metolachlor (13C6,99%) 100µg/mL in Nonane, 1,2ml

Citric acid