Table 1.
Retention time, SIM mode, and recovery calculated for three concentration levels and matrix effect for selected PCBs
| PCB congener | IUPAC name | Retention time (min) | SIM ions | Recovery (%) (RSD) | Matrix effect (%) (RSD) | ||
|---|---|---|---|---|---|---|---|
| 10 (ng/mL) | 5 (ng/mL) | 2 (ng/mL) | |||||
| 28 | 2,4,4′- Trichlorobiphenyl | 12.118 | 150.05/186.00/255.90/257.90 | 96.46 (8.33) | 110.61 (9.54) | 110.73 (10.36) | 3.50 (1.40) |
| 52 | 2,2′,5,5′-Tetrachlorobiphenyl | 12.728 | 150.05/220.00/254.85/291.90 | 102.51 (4.86) | 116.09 (7.18) | 104.44 (8.82) | 7.53 (1.14) |
| 101 | 2,2′,4,5,5′-Pentachlorobiphenyl | 14.331 | 184.00/253.90/325.80 | 114.04 (8.66) | 105.79 (12.71) | 117.76 (3.69) | 9.68 (0.73) |
| 118 | 2,3′,4,4′,5′-Pentachlorobiphenyl | 15.488 | 183.90/253.90/255.90/325.80 | 107.12 (8.76) | 111.82 (8.96) | 115.03 (8.11) | 11.30 (0.31) |
| 153 | 2,2′,3,4,4′,5′-Hexachlorobiphenyl | 16.387 | 217.90/289.90/359.80 | 103.61 (7.19) | 105.76 (8.70) | 119.98 (3.45) | 8.34 (1.24) |
| 138 | 2,2′,4,4′,5,5′-Hexachlorobiphenyl | 15.877 | 217.95/289.90/359.80 | 103.98 (7.13) | 107.86 (8.62) | 103.10 (8.45) | 6.77 (0.45) |
| 180 | 2,2′,3,4,4′,5,5′-Heptachlorobiphenyl | 17.580 | 251.95/323.80/393.75 | 101.53 (4.46) | 102.64 (6.11) | 102.78 (7.91) | 1.53 (2.45) |