4,4'-Difluorobenzophenone, 100mg

Brilliant Green BS (E 142), 1g

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)

Perfluoro-n-[1,2,3,4,5-13C5]pentanoic acid, 1.2ml x 50ug/ml, methanol