Perfluorododecanesulfonic acid, 50µg/ml in MeOH, 1ml

Ethanol standard in water,0.8g/L,water, 1.5mL

QC Check Sample

n-Butylbenzene, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 104-51-8