TABLE 1.
Mass spectra of products of dye 1 degradation
| Compound no. | Enhanced mass spectrum m/z (relative intensity [%]) | Value for enhanced product ion mass spectrum of quasi molecular ion
|
|
|---|---|---|---|
| Collision energy (V) | m/z (relative intensity [%]) | ||
| I | 157 (100), 93 (5) | −50 | 157 (8.1), 139 (9.5), 93 (27.5), 80 (100), 65 (11) |
| II | 173 (100), 172 (56), 171 (1.5), 109 (2), 80 (1) | −25 | 173 (100), 155 (5), 109 (15), 93 (5), 80 (22) |
| III | 185 (?), 93 (?)a | −30 | 185 (100), 121 (99), 93 (6), 80 (31) |
| IV | 1,382 (<0.5), 922 (0.6), 921 (2), 462 (9), 461 (16), 460 (68), 327 (14), 328 (20), 327 (100) | −35 | 921 (76), 786 (13), 761 (5), 592 (3), 474 (5), 446 (18), 431 (5), 415 (3), 380 (12), 340 (14), 327 (100) |
| V | 1,233 (<0.5), 618 (17), 617 (26), 616 (100), 329 (16), 328 (15), 327 (53) | −35 | 1,233 (18), 904 (11), 616 (100), 602 (18), 573 (12), 536 (33), 482 (26), 327 (63), 246 (25), 166 (30) |
| VI | 549 (6), 365 (3.5), 364 (16), 274 (78), 263 (3.5), 262 (13), 261 (27), 232 (3.5), 231 (8.5), 172 (7.5), 171 (19), 158 (2.5), 157 (3.5), 156 (100) | −35 | 549 (100), 521 (1.5), 364 (23), 336 (1.5), 260 (18), 232 (2.5), 171 (8.5), 156 (28.5) |
| VII | 448 (4), 447 (9.5), 446 (73), 261 (16), 260 (5), 172 (4), 171 (1.5), 157 (3), 156 (100) | −35 | 446 (13), 260 (11), 171 (29), 156 (100), 80 (10) |
a
Not stated because of weak chromatographic separation.