Fluazifop-butyl, 10 µg/ml, Ethyl acetate, 10ml

Butachlor ESA sodium salt, 100µg/ml in MeOH, 1ml

3,3',4,4'-Tetrabromobiphenyl, 1.2ml x 50ug/ml, nonane

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)