All-rac-alpha-tocopherol for peak ident., 50mg

1-Ethoxy-2-propanol, certified, 0.25g

1,4-Dimethyldibenzothiophene, 500µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 21339-65-1

EPA Method 525.1 Analytes Mix #2