PCBs Standard Solution 8 components_x000D_ 100ug/ml each of PCB 28 [CAS:7012-37-5] ; PCB 52 [CAS:35693-99-3] ; PCB 101 [CAS:37680-73-2] ; PCB 118 [CAS:31508-00-6] ; PCB 138 [CAS:35065-28-2] ; PCB 153 [CAS:35065-27-1] ; PCB 180 [CAS:35065-29-3] ; PCB 194 [CAS:35694-08-7] in n-Hexane