Internal Standards Mix 33, 2000 ng/µl, 1ml

4 alpha-Methyl-1,2,3,4,9,10-hexahydrophenanthrene (cis/trans), 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 60795-82-6

4-Chloromethyl-2-phenyl-1,3-dioxa-2-borolane, 1000µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no.

2,4'-DDE, 100µg/mL, Solvent-dichloromethane, Unit 1mL, # of units-1, Cas.no. 3424-82-6