Surrogate Standard Back Catalog number: 90397 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 674491 PSA-C18-Mix 1 Price on request 2350.32-100-IO Bishomohopane, Isomer mix, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. Price on request 98654 PAH Standard (50 ppm) Price on request