Celecoxib,1000 µg/mL,acetonitrile,1mL,

2-Methylchrysene, 200µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 3351-32-4

n-Tridecane, ?13C: -33.47, 150µg/mL, Solvent-cyclohexane, Unit 1mL, # of units-5, Cas.no. 629-50-5

2,4-Diaminotoluene,100 µg/mL,acetonitrile,1mL,