Alfuzosin hydrochloride, 10mg

1,2,4,5-Tetrabromo-3,6-dimethylbenzene,50 µg/mL,isooctane,1mL,

Melamine-13C3,15N3, 1mg

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)