Precision and Recovery Stock Solution: Marker PCBs, 1.2ml, nonane

Palustric acid, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 1945-53-5

n-Pentacosane, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 629-99-2

Ergosterol, 100mg