Ethion, 10.0 µg/ml, Cyclohexane, 10ml

Sulfite (SO32-),1000µg/mL in Water, 3 x 20ml

3,3',4,4',5,5'-Hexabromodiphenyl ether, 1.2ml x 50ug/ml, nonane

2H-Perfluoro-[1,2-13C2]-2-dodecenoic acid (10:2), 50µg/ml in Isopropanol, 1,2ml