1,2,3,5-Tetrachloronaphthalene, 1.2ml x 50ug/ml, nonane

Sodium 1H,1H,2H,2H-perfluorooctylphosphate, 1.2ml x 50ug/ml, methanol

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)

Alachlor ESA-d13 Sodium Salt, 0,5mg