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Predicting gas chromatographic retention times of 209 polybrominated diphenyls (PBBs) for different temperature programs
Authors:H?X?Zhao  Q?Zhang  X?Y?Xue  Email author" target="_blank">X?M?LiangEmail author  A?Kettrup
Institution:(1) Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116011, P. R. China;(2) GSF-National Research Center for Environment and Health, Institute of Ecological Chemistry, Postfach 1129, 85758 Neuherberg, Germany;(3) Chair of Ecological Chemistry and Environmental Analytical Chemistry, Technical University Munich, 85350 Freising-Weihenstephan, Germany
Abstract:A method has been developed to predict the retention times of 209 individual polybrominated diphenyl congeners for different temperature programs. The retention equations lnklsquo=A+B/T of five PBBs in gas chromatography (GC) were used to evaluate the properties of the regression coefficients A and B, which are widely accepted as being highly reliable chromatographic retentions. The quantitative relationships between the A and B values of PCBs and those of PBBs were found. The regression equations derived have coefficients of determination greater than 0.999. The A, B values of any PBB can be predicted by using the A, B values of the PCB according to these relationships. Using these predicted A and B values, the retention times of all PBBs can be predicted. This is an important advance in the identification of PBBs because at present there are only a few PBB standards available.
Keywords:Chromatographic retention  Prediction  PBBs  PCBs quantitative relationship
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