Matrix Spiking Solution, 1.2ml, nonane

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)

4,4'-Bis(2-benzoxazolyl)stilbene, >97%, 25g

4-tert-Octylphenol, 250mg