Hexachlorobenzene,10 µg/mL,cyclohexane,1mL,

n-Perfluoropentanoic acid, 50µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 2706-90-3

ß alpha alpha (20R)-Cholestane, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 481-20-9

2,2,4a,7,8-Pentamethyl-cis-decaline; C15 Bicyclic terpane, ca. 20 µg/mL, Solvent-isooctane, Unit 0.25µL, # of units-1, Cas.no.