13C3-Atrazine-desethyl-desisopropyl, 100 µg/ml, M

6-Nitrobenzo[a]pyrene, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 63041-90-7

Hexachlorobenzene (13C6, 99%), 100µg/ml in Nonane, 1,2ml

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)