Nitrate as (NO3-) Back Catalog number: 54300 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 0451.3-150-CYX5 GC-IRMS Standards (C11(?13C: -26.11); C15 (?13C: -30.22); C20 (?13C: -33.06)), 150µg/mL, Solvent-cyclohexane, Unit 1mL, # of units-5, Cas.no. Price on request 73158 Dodecanoic acid Price on request 0714.12-K-IO 1-Ethylnaphthalene, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 1127-76-0 Price on request