Benzene/n-Hexane Control Standard Benzene/n-Hexane = 1:2 (Neat 1mL)

Dextromethorphan hydrobromide monohydrate,1000 µg base/mL,MeOH,1mL,

2'-Fluoro-2,4,6-trichlorobiphenyl, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 876009-90-4

Maleic anhydride