(R)-(+)-Limonene, 100µg/ml in MeOH, 5ml

2,3,3',4,5,5'-Hexachloro-4'-methoxy[13C12]biphenyl, 1.2ml x 50ug/ml, toluene

Hopane/Sterane Calibration Mix, 12 components, 10µg/ml in Isooctane, 1ml

Nitric Acid Blank