ICP-MS Internal Standard Back Catalog number: 50246 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 79672 Diethyl phthalate Price on request 1492.18-10MG 1-Hydroxychrysene, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 63019-38-5 Price on request 79041 4,4’-DDE Price on request