Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Precursor-product mass transitions for each PCB homolog group during MS-MS.
| CI Homologa | Precursor Mass | Product Mass |
|---|---|---|
| Mono | 188 | 152 |
| Di | 222 | 152 |
| Tri | 258 | 186 |
| Tetra | 291.9 | 222 |
| Penta | 325.9 | 255.9 |
| Hexa | 359.8 | 298.9 |
| Hepta | 393.8 | 323.9 |
| Octa | 429.7 | 359.8 |
| Nona | 463.7 | 393.8 |
| Deca | 497.7 | 427.9 |
| D5 tri | 261 | 191 |
| D5 tetra | 296.9 | 277 |
Unlabeled standards were from AccuStandard, New Haven, CT, USA. Labeled standards were from C/D/N Isotopes, Pointe-Claire, QC, Canada.
