2H,2H-Perfluorooctanoic acid, 10mg

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)

2,4'-Dichloro[13C12]biphenyl, 1.2ml x 50ug/ml, nonane

Custom PAH mix, C15-C22 0813.15 3-Methylphenanthrene 0815.15 9-Methylphenanthrene 0811.15 1-Mehtylphenantrene 0460.15 2-Methylanthracene 0794.18 Retene 0261.18 Benzo[ghi]fluorantene 0035.18 Cyclopenta[cd]pyrene 0001.18 Triphenylene 0262.20 Benzo[a]f