(±)-Naproxen-d3 (?-methyl-d3),neat,neat,10mg,

2,6-Dinitrophenol, 1000µg/mL, Solvent-isopropanol, Unit 1mL, # of units-1, Cas.no. 573-56-8

1H,1H,2H,2H-Perfluorooctanesulfonic acid, 10mg

EPA Method 551.1 Performance Check Soln