ICP-MS Low Check Mix Back Catalog number: 50749 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 1551.21-K-IO n-Heneicosane-d44, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 39756-37-1 Price on request 675645 Propetamphos, 100 µg/ml, Ethyl acetate, 5ml Price on request 1703.10-K-AN 4-(N-Methyl-N-nitrosamino)-1-(3-pyridyl)-1-butanone, 1000µg/mL, Solvent-acetonitrile, Unit 1mL, # of units-1, Cas.no. 64091-91-4 Price on request