lambda-Cyhalothrin, 100 µg/ml, Ethyl acetate, 5m

1,2-Dichloroethane, 2000µg/ml in MeOH, 1ml

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)

Atrazine D5 (ethylamino D5), 1000 µg/mL in Acetonitrile, 1ml