Sulfate (SO42-)

1,2,7,8-Tetrachloro[13C12]dibenzofuran, 1.2ml x 1ug/ml, nonane

n-Undecane, ?13C: -26.11, 150ug/ml, Solvent-cyclohexane, Unit 1mL, # of units-10, Cas.no. 1120-21-4

Dibenzo[a,i]pyrene-d14, 1000µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 158776-07-9