Abstract
AbstractThe electron‐capture negative‐ion chemical Ionization mass spectra of 36 35Cl mono‐ and di‐labelled penta‐ and hexachlorobiphenyls were studied. Under the conditions of the analyses, the dechlorination of these congeners probably proceeds through electrophilic hydrogen atom attachment followed by rapid loss of the chlorine atom at the same position. These dechlorination reactions occur regioselectively. When present, ortho‐chlorines are lost preferentially to meta‐ and para‐chlorines. The extent of the dechlorination reaction, as seen by the relative abundance of the [MH Cl]− ions, decreases with increasing number of ortho‐chlorines.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.