Table 2: PCBs Masses and CE.

Compounds Name

Quantitative Ion

CE

Reference Ion

CE

PCB 77

289.9 > 219.9

26

291.9 > 221.9

26

PCB 81

289.9 > 219.9

26

291.9 > 221.9

26

PCB 105

323.9 > 253.9

26

325.9 > 255.9

26

PCB 114

323.9 > 253.9

26

325.9 > 255.9

26

PCB 118

323.9 > 253.9

26

325.9 > 255.9

26

PCB 123

323.9 > 253.9

26

325.9 > 255.9

26

PCB 126

323.9 > 253.9

26

325.9 > 255.9

26

PCB 156

359.9 > 289.9

28

361.9 > 291.9

28

PCB 157

359.9 > 289.9

28

361.9 > 291.9

28

PCB 167

359.9 > 289.9

28

361.9 > 291.9

28

PCB 169

359.9 > 289.9

28

361.9 > 291.9

28

PCB 189

393.8 > 323.9

28

395.8 > 325.9

28

13C12 - PCB 77

301.9 > 231.9

26

303.9 > 233.9

26

13C12 - PCB 81

301.9 > 231.9

26

303.9 > 233.9

26

13C12 - PCB 105

335.9 > 265.9

26

337.9 > 267.9

26

13C12 - PCB 114

335.9 > 265.9

26

337.9 > 267.9

26

13C12 - PCB 118

335.9 > 265.9

26

337.9 > 267.9

26

13C12 - PCB 123

335.9 > 265.9

26

337.9 > 267.9

26

13C12 - PCB 126

335.9 > 265.9

26

337.9 > 267.9

26

13C12 - PCB 156

371.8 > 301.9

28

373.8 > 303.9

28

13C12 - PCB 157

371.8 > 301.9

28

373.8 > 303.9

28

13C12 - PCB 167

371.8 > 301.9

28

373.8 > 303.9

28

13C12 - PCB 169

371.8 > 301.9

28

373.8 > 303.9

28

13C12 - PCB 189

405.8 > 323.9

28

395.8 > 325.9

28