Menaquinone 7-d7 (90%), 0,25mg

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)

1,1-Dichloro-2-[2-chloro(13C6)phenyl]-2-[4-chloro(13C6)phenyl]ethene, 1.2mL x 100ug/mL, nonane

2,2',3,4,5,6,6'-Heptachlorobiphenyl ,100 µg/mL,isooctane,1mL,