D-Neopterin-13C5, 1mg

N-Nitroso-diethanolamine, 100μg/ml in MeOH, 5ml

Internal Standard for AB SIM

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)