Perfluoro-n-[1,2-13C2]octanoic acid, 50µg/ml in MeOH, 1,2ml

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)

Perfluorotridecanoic acid, 50µg/mL in MeOH, 1mL

Decabromodiphenyl ether (13C12,99%), 50µg/ml in Nonane, 1,2ml