Dibenz[a,j]anthracene, 10µg/mL in Acetonitrile, 10ml

[13C3],[13N3]-Cyanuric Acid, 1.2ml x 100ug/ml, water

n-Octylcyclohexane

2-Chloro[13C12]biphenyl, 50.0µg/mL in Nonane/5% toluene, 1,2ml