200 µg/mL of each analyte in Methanol.Bromobenzene 4-Chlorotoluene 1,4-Dichlorobenzene 1,2,3-TrichlorobenzeneChlorobenzene 1,2-Dichlorobenzene Hexachlorobutadiene 1,2,4-Trichlorobenzene2-Chlorotoluene 1,3-Dichlorobenzene Tetrachloroethene Trichloroe