Retention Time Verification Standard

Endrin ketone, 100 µg/ml, Acetonitrile, 1ml

Chlordane, 2000µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 57-74-9

4,4'-Dibromodiphenyl ether, 50µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 2050-47-7