Carvedilol, 1000µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 72956-09-3

Perfluoro-n-octane, neat, Solvent-neat, Unit 1ml, # of units-1, Cas.no. 307-34-6

n-Triacontane, ?13C: -28.60, 150µg/mL, Solvent-cyclohexane, Unit 1mL, # of units-5, Cas.no. 638-68-6

2,3,3',4,6-Pentachlorobiphenyl ,100 µg/mL,isooctane,1mL,