Xylenes [Total Mixed Isomers]

7-Bromo-2,3-dichlorodibenzo-p-dioxin (96%), 1.2ml x 48ug/ml, toluene

2,3,4-Trichlorophenol

EPA 528 rev. 1.0 Internal Standard Solution 2 200µg/mL in dichloromethane; unit: 1x5mL 2081.6 2,3,4,5-Tetrachlorophenol [4901-51-3]