Multi-Element Internal Std., 10ug/ml, 4x25ml Back Catalog number: 52319 Manufacturer: ABSOLUTE STANDARDS Availability: 3 weeks Price on request - + Recommended 682762 Octanoic acid, 1000mg Price on request 70675 Ethion, 1000µg/ml in MeOH, 1ml Price on request 8537.16-100-IO n-Butyl iso-butyl phthalate (n-Butyl 2-methylpropyl phthalate), 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 17851-53-5 Price on request