TABLE 1.
GC-MS identification of the PAH catechols produced by PDDH
| Substrate | RT (min)a | Properties of TMS derivates of the PAH catechols (m/z of fragment ions [% relative intensity, characterization])b |
|---|---|---|
| Biphenyl 2,3-dihydrodiol | 15.66 | 330 (100, M+), 315 (20.5, M+-CH3), 257 (8.5, M+-TMS), 242 (47.2, M+-TMS-CH3), 227 (41.8, M+-TMS- 2CH3), 212 (48.6, M+-TMS- 3CH3), 152 (10.0, M+-2OTMS) |
| Naphthalene 1,2-dihydrodiol | 13.81 | 304 (100, M+), 289 (4.2, M+-CH3), 216 (40.7, M+-TMS-CH3), 201 (5.6, M+-TMS- 2CH3), 186 (25.7, M+-TMS- 3CH3) |
| Phenanthrene 3,4-dihydrodiol | 19.47 | 354 (100, M+), 339 (3.1, M+-CH3), 281 (3.0, M+-TMS), 266 (54.7, M+-TMS-CH3), 236 (50.5, M+-TMS-3CH3), 176 (5.1, M+-2OTMS) |
| Anthracene 1,2-dihydrodiol | 20.54 | 354 (100, M+), 339 (2.5, M+-CH3), 281 (2.2, M+-TMS), 266 (58.0, M+-TMS-CH3), 236 (33.5, M+-TMS-3CH3), 176 (3.2, M+-2OTMS) |
| Pyrene 4,5-dihydrodiol | 22.46 | 378 (100, M+), 363 (4.4, M+-CH3), 291 (17.8), 290 (51.7, M+-TMS-CH3), 260 (32, M+-TMS-3CH3), 215 (11.0), 207 (13.8), 200 (3.2, M+-2OTMS) |
| Fluoranthene 2,3-dihydrodiol | 22.14 | 378 (100, M+), 363 (3.6, M+-CH3), 291 (8.2), 290 (35.6, M+-TMS-CH3), 260 (23.7, M+-TMS-3CH3), 215 (6.1), 207 (5.1), 200 (2.9, M+-2OTMS) |
| Chrysene 3,4-dihydrodiol | 25.04 | 404 (100, M+), 389 (3.9, M+-CH3), 331 (4.8, M+-TMS), 317 (16.6), 316 (70.0, M+-TMS-CH3), 286 (45.0, M+-TMS-3CH3), 226 (6.9, M+-2OTMS) |
| Benz[a]anthracene 1,2-dihydrodiol | 23.82 | 404 (100, M+), 389 (2.6, M+-CH3), 331 (1.5, M+-TMS), 316 (33.1, M+-TMS-CH3), 286 (19.7, M+-TMS-3CH3), 226 (2.2, M+-2OTMS) |
| Benzo[a]pyrene dihydrodiol | 28.06 | 428 (100, M+), 355 (3.8, M+-TMS), 340 (33.8, M+-TMS-CH3), 310 (14.6, M+-TMS-3CH3), 282 (9.1, M+-2TMS), 281 (14.0), 250 (3.9, M+-2OTMS) |
a
RT, retention time.
b
TMS, trimethylsilyl.