Internal Standard ICP-MS (200.8) Back Catalog number: 59143 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 677608 1H,1H,2H,2H-Perfluorohexanesulfonic acid, 10mg Price on request 1498.12-K-IO 3-Methylundecane, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 1002-43-3 Price on request 680434 Zolpidem tartrate, 100 µg/ml, Methanol, 1ml Price on request