Mix A - Corn (Dex): T&L, Cargill, POET, BASF

2,3,6,7-Tetrachloroxanthene , 1.2ml x 50ug/ml, toluene

2 alpha,17ß(H),21ß(H)-2-Methylhopane, neat, Solvent-neat, Unit ca. 10µg , # of units-1, Cas.no. 138128-29-7

PCB-Mix 2, 10µg/mL in Cyclohexane, 10ml