Monophenyltin trichloride, 1000µg/mL, Solvent-methanol, Unit 5mL, # of units-1, Cas.no. 1124-19-2

ßß-Carotene, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 7235-40-7

Benzo(k)fluoranthene, 1000µg/ml in Acetonitrile, 1

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)