EPA Method 8240 Purgeable Halocarbons

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

1,2,3,7,8-Pentachlorodibenzo-p-dioxin,50 µg/mL,n-nonane,1mL,

O-Desmethyl tramadol hydrochloride , 100µg base/mL, Solvent-methanol, Unit 1mL, # of units-5, Cas.no.