Sample Fortification Solution, 1.2ml, nonane

Phenol, 100 µg/ml, Methanol, 1ml

[13C12]Dibenzofuran, 1.2ml x 50ug/ml, toluene

2-Methyl-1-naphthol, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 7469-77-4