Phosphamidon, 100 µg/ml, Ethyl acetate, 5ml

N-Nitrosodiethylamine, 1g

D3-Glufosinate hydrochloride, 100 µg/ml, Water,

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)