Interference Standard 1 Back Catalog number: 52039 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 9408.15-100-ME alpha-Hydroxymetoprolol, 100µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 56392-16-6 Price on request 58223 Vanadium (V) Price on request 680852 PCB 95, 10 µg/ml, Isooctane, 10ml Price on request