EPA 1638Mix A Back Catalog number: 52144 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 56064 Gadolinium (Gd) Price on request MPN-5 1,4-Dichloro(13C10)naphthalene, 1.2mL x 50ug/mL, nonane Price on request 1623.11-100-IO 1,1,1,3,9,11,11,11-Octachloroundecane, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 601523-25-5 Price on request