Arsenic (As) and Antimony (Sb) Back Catalog number: 59961 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended PCB-ISS-H Mass-Labelled PCB Internal/Recovery Standards, 1.2ml, nonane Price on request 9758.20-250MG Iso-pentyl benzyl phthalate (3-Methylbutyl benzyl phthalate), neat, Solvent-neat, Unit 250mg, # of units-1, Cas.no. 72170-46-8 Price on request 0350.14-K-T 1-Methylfluorene, 1000µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 1730-37-6 Price on request