2,4,4'-Tribromodiphenyl ether, 1.2ml x 50ug/ml, nonane

EPA Method 528 Fortification Solution

2,3,5-Trichlorophenol, 100 µg/ml, Methanol, 1ml

2,3,4,5,6-Pentachlorophenol-13C6, 1000µg/ml in Isopropanol, 1ml