Determination of Elution Order of Polychlorinated Biphenyl Congeners Using Commercially Available Capillary Columns
نویسندگان
چکیده
The elution order of 209 polychlorinated biphenyls (PCBs) was determined using five types commercially available capillary columns (VF-Xms, Rtx-20, VF-35ms, VF-1301ms and VF-200ms). In addition, the interference among molecular ion peaks PCDDs non-dioxin like PCB congeners, which affect during dioxin analysis by GC/MS, clarified.
منابع مشابه
Concentrations and Profiles of Polychlorinated Naphthalene Congeners in Eighteen Technical Polychlorinated Biphenyl Preparations
Concentrations and profiles of trithrough octa-chlorosubstituted polychlorinated naphthalene (PCN) congeners were determined in eighteen technical polychlorinated biphenyl (PCB) mixtures including Aroclors, Kanechlors, Clophens, Phenoclors, Sovol, and Chlorofen. PCNs were found in all the PCB mixtures at concentrations ranging from 5.2 to 730 μg/g. Concentrations of PCNs in Aroclor and Kanechlo...
متن کاملVapor pressure of ten polychlorinated biphenyl congeners and two commercial fluids as a function of temperature.
The Knudsen mass-loss effusion technique was used to measure the vapor pressures of commercial Kanechlor fluids (Kanechlor 300 and Kanechlor 500) and 10 major individual polychlorinated biphenyls (PCBs) in Kanechlors as a function of temperature and ortho-chlorine substitution. From the temperature dependence of vapor pressure, the thermodynamic parameters, such as enthalpies and entropies of s...
متن کاملEmpirical modeling of an in vitro activity of polychlorinated biphenyl congeners and mixtures.
The goal of this research is to predict an in vitro activity of polychlorinated biphenyl (PCB) congeners and their mixtures and to describe the relationship between this activity and chemical structure. The test system used multiple PCB concentrations on each cell culture plate in a repeated measures design, which improved precision for comparing between concentration levels. A weighted regress...
متن کاملPatterns of bioaccumulation of polybrominated diphenyl ether and polychlorinated biphenyl congeners in marine mussels.
Marine mussels (Modiolus modiolus) and sediment from 14 stations near a municipal outfall and three reference locations were analyzed for polybrominated diphenyl ethers (PBDEs) and polychlorinated biphenyls (PCBs) to evaluate and compare patterns of bioaccumulation of individual congeners between these two groups of chemicals. Of the 47 PBDEs and 209 PCBs analyzed, 34 PBDE and 153 PCB congeners...
متن کاملHigh resolution gas chromatographic analysis of cytochrome P-448 inducing polychlorinated biphenyl congeners in hazardous waste.
Polychlorinated biphenyls (PCBs), which have been commercially manufactured since 1929, are complex mixtures of many congeners and several homologues. They have been used in a variety of industrial and non-industrial applications which has allowed large quantities to be released into the workplace and environment1-6. Based on a 198 1 estimate, as many as 17 million pounds of PCBs were entering ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Kankyo? kagaku
سال: 2022
ISSN: ['0917-2408', '1882-5818']
DOI: https://doi.org/10.5985/jec.32.50