Calibration Std. #2

2,3,4,6,7,8-Hexachlorodibenzofuran ,50 µg/mL,n-nonane,1mL,

2-Chlorotoluene

rac-(1R,2R,5R,6R)-1,2,5,6-Tetrabromocyclooctane, 1.2ml x 50ug/ml , toluene