2-Methylnaphthalene, 100 µg/ml, Acetonitrile, 1m

2-Ethoxyethyl acetate, neat, Solvent-neat, Unit 1mL, # of units-1, Cas.no. 111-15-9

17 alpha(H),21ß(H)-(22RS)-Pentakishomohopane , neat, Solvent-neat, Unit ca. 10µg , # of units-1, Cas.no. 54370-82-0

2,2',3,3',4,5'-Hexachlorobiphenyl,100 µg/mL,isooctane,1mL,