Chlorfenvinphos, 100 µg/ml, Toluene, 1ml

Perfluoro-1-[13C8]octanesulfonamide, 50µg/ml in Isopropanol, 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)

2,2',3,3',4,5,5'-Heptachloro-4'-methoxybiphenyl, 1.2ml x 50ug/ml, nonane