Methylparaben, 100 µg/ml, Acetonitrile, 5ml

1,2,3,4,6,7-Hexachloronaphthalene, 50µg/ml in nonane, 1,2ml

Lorazepam

Sulfur Calibration Mixtures: Di-n-butyl sulfide in Light 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)