Formaldehyde-DNPH Level 3 (1.0ug/mL)

Perfluoropropanoic acid, 50µg/ml in MeOH, 1,2ml

1,6-Dimethylphenanthrene, 500µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 20291-74-1

Precision and Recovery Stock Solution: WHO PCBs, 1.2ml, nonane