Internal Standard Spiking Solution, 1.2ml, nonane Back Catalog number: EPA-513ISS Manufacturer: Wellington Laboratories Availability: 1 week Price on request - + Recommended 19042 EPA Method 508 Surrogate Standard Price on request 9752.26-K-IO Hexacosanoic acid (Cerolic acid), 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. Price on request 1732.30-10MG 8,16-Pyranthrenedione, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 128-70-1 Price on request