EPA 1620 Standard 3

Di-n-pentyl phthalate-3,4,5,6-d4, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 358730-89-9

Atrazine-desethyl-desisopropyl, 50µg/mL in MeOH, 1ml

Pentobarbital-D5