GFAA Mix Back Catalog number: 50408 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended PFECHS Perfluoro-4-ethylcyclohexanesulfonate, 50µg/ml in MeOH, 1,2ml Price on request 0981.28-10-IO d2 C27/C28 Triaromatic Sterane, 10µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. -/205529-81-3 Price on request 10709.4-100-ME O,O-Diethylthiophosphate-13C2, sodium salt, 100µg/ml in MeOH, 1ml Price on request