Phthalate Esters Mix 1, 2000 ng/µl, 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)

Amitriptyline-d3 hydrochloride (N-methyl-d3)

Sulfapyridine, 100 µg/ml, Methanol, 1ml