Hexavalent Chromium (Cr +6)

2,4,6-Trichlorophenol, certified, 0.1g

Thionazin-O-analog, 100µg/mL, Solvent-c.hexane or ac.nitrile, Unit 1mL, # of units-1, Cas.no. 7359-55-9

EPA 16 PAH Cocktail (13C,99%), 5µg/ml Nonane,1,2ml