2-Hydroxycarbamazepine, 10µg/ml in Acetonitrile, 1ml

Sulfur Calibration Mixtures: Di-n-butyl sulfide in Heavy White Oil (less than 20mg/kg S) Unit : 10mL screw-capped bottle Light White Mineral Oil Heavy White Mineral Oil (20 cSt at 40°C) (70 cSt at 40°C)

Naphthalene-d8, 100mg

Tridecafluorohexane-1-sulfonic acid potassium salt