PCB 28, 10.0 µg/ml, Isooctane, 10ml

D4-Furazolidone, 10mg

U-(13C13)-Citrinin,10 µg/mL,acetonitrile,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)