Liquid chromatographic aqueous product characterization of high-energy electron beam irradiated 2-chlorobiphenyl solutions.
Polychlorinated biphenyls (PCBs) are of environmental concern due to their toxic nature. Ionizing radiation has been suggested as a means to remediate PCB-contaminated samples in complex matrices. A set of experiments was performed to qualitatively and quantitatively determine the aromatic degradation products of 2-monochlorobiphenyl (2-MCB) in an aqueous system exposed to ionizing radiation. The degradation of 2-MCB was observed in aqueous samples that were exposed to radiation from a linear accelerator electron beam source. Analytical measurements performed by liquid chromatography (LC) equipped with an ultraviolet (UV) detector revealed that biphenyl, o-hydroxybiphenyl, p-hydroxybiphenyl, phenol, chlorobenzene, and other unidentified products were created after 2-MCB irradiation. These results suggest that sensitive and selective analytical methods will be required to account for all degradation products during ionizing radiation of aqueous PCB-contaminated samples.
Cogswell Laboratories, Department of Chemistry, Rensselaer Polytechnic Institute, 110 Eighth Street, Troy, NY 12180, USA.
Nicholas J
NJ
Drenzek
Marianne C
MC
Nyman
Nicholas L
NL
Clesceri
Robert C
RC
Block
Julie A
JA
Stenken
D001713:Biphenyl Compounds / Q000737:chemistry*; D002853:Chromatography, Liquid; D007700:Kinetics; D010315:Particle Accelerators; D011839:Radiation, Ionizing
D001713:Biphenyl Compounds; C055142:2-chlorobiphenyl