Simazine D5, 100µg/mL in Acetonitrile, 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)

2H-Perfluoro-[1,2-13C2]-2-decenoic acid (8:2), 50µg/ml in Isopropanol, 1,2ml

N,N-Dimethylformamide