Poly chlorobiphenyls

Ahmad, D., Masse, R. Sylvestre, M. (1990). Cloning and expression of genes involved in 4-chlorobiphenyl transformation by Pseudomonas testosteronr. homology to poly-chlorobiphenyl-degrading genes in other bacteria. Gene, 86, 53-61. 

Chlorobenzenes, organochlorine insecticides, poly chlorobiphenyls, halogenated solvents [603]... 

The photochemistry of polycyclic aromatic hydrocarbons (PAHs) and poly-chlorobiphenyls (PCBs) in water and on solids was reviewed in this series in 1999 [1]. The large interest in this field was due to the fact that many PAHs and mixtures of PCBs are on the United States Environmental Protection Agency s fist of priority pollutants (see [1] for the fist of compounds). Photochemists wanted to know what the fate of these materials in the environment is when exposed to sunlight and if one could use photochemistry to remediate contaminated sites. This interest has continued and will be the focus of the present review. The review covers the recent literature through the middle of 2003. 

Farwell and coworkers [209,210] investigated the electrochemistry of mono- and poly-chlorobiphenyls at mercury in DMSO containing TEABr. These compounds exhibit sequential two-electron removal of chlorine, but there is a tendency (due to the varied pattern of chlorine substitution) for more than one product to be formed sometimes two chlorines are expelled simultaneously. In another study, Maruyama and Murakami [211] reported that chlorinated biphenyls are reduced in DMF via one-electron cleavage of a carbon-chlorine bond to yield chloride and an aryl radical, which subsequently abstracts a hydrogen atom from the solvent. Rusling and Arena [212] probed the reduction of 4-bromo-, 4,4 -dibromo-, 3,4-dichloro-, and 2,2, 5,5 -tetrachlorobiphenyl at mercury in... 

Polychlorodibenzo-p-dioxins, polychlorodi-benzofurans, poly-chlorobiphenyls Polychlorodibenzo-p-dioxins, polychloro-dibenzofurans... 

Other organic compovmds that have been determined in sewage effluents by gas chromatography-mass spectrometry include the following (Table 16.7) nanylphenoxycarboxylic adds, chlorinated hydrocarbons, poly-chlorobiphenyls, organochlorine insectiddes, hexachlorophene, penta-chlorophenol, N-(phenylsulphonyl) sarcosine, dimethyl di, tri and tetrasulphides, Abrazine, Nirex, and volatile organic compoimds. 

Bowadt, S. and Larsen, B. (2005) Rapid screening of chlorobiphenyl congeners by GC-ECD on a carborane - poly-dimethylsiloxane copolymer. /. High Resolut. Chromatogr., 15 (5), 350-351. Gummersbach, J. (2011), Thermo Fisher Scientific, Application Laboratory Dreieich, Germany, personai communication. 

---