L1 /
2
CH3041
PCDFs I
• The toxic component in
PCB fluid is now thought
to be trace amounts of
impurities called PCDFs.
PolyChlorinated
DibenzoFurans
PCB fluid is now thought
to be trace amounts of
impurities called PCDFs.
PolyChlorinated
DibenzoFurans
• The bridging
group in between the 2
benzene rings is furan.
benzene rings is furan.
• Again a set of congeners (135) is found.
• GC-MS analysis for PCDFs and dioxins
These are formed in the
synthesis of the PCBs at high T with O2.
synthesis of the PCBs at high T with O2.
