Spiking Standard 2

Perfluorotetradecanoic acid, 50µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 376-06-7

Propranolol hydrochloride, 100mg

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)