EPA Method 353.2 Nitrate + Nitrite Back Catalog number: 53120 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended PF4OPEA Perfluoro-4-oxapentanoic acid (PFMPA), 1.2ml x 50ug/ml, methanol Price on request 8724.8-K-IO Dimethyl adipate, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 627-91-8 Price on request 3992.9-K-CY 1,1,4-Trimethylcyclohexane, 1000µg/mL, Solvent-cyclohexane, Unit 1mL, # of units-1, Cas.no. 7094-27-1 Price on request