epsilon-HCH, 10µg/ml in Cyclohexane, 1ml

Sulfamethazine, 1000µg/ml in MeOH, 1ml

Metobromuron, 100 µg/ml, Acetonitrile, 5ml

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)