Sterigmatocystine, 50µg/mL, Solvent-acetonitrile, Unit 1mL, # of units-1, Cas.no. 10048-13-2

N,O-Bis(trimethylsilyl)trifluoroacetamide, neat, Solvent-neat, Unit 25g, # of units-1, Cas.no. 25561-30-2

Tetrachloroethene

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)