Liquid chromatographic isolation of coplanar PCB congeners on an activated carbon stationary phase |
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Authors: | Astrid Trost W Kleiböhmer Karl Cammann |
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Institution: | Institut für Chemo- und Biosensorik, Mendelstrasse 7, D-48149 Münster, Germany, DE
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Abstract: | A rapid and uncomplicated method for the fractionation of PCBs leading to an isolation of the highly toxic non-ortho substituted PCBs is described. The liquid chromatographic separation was achieved on a stationary phase consisting of activated carbon and Celite 545. Using eluents with different polarity, isolation of the non-ortho substituted PCBs in a single fraction was achieved. The fractions were analysed by GC/MS. The method was tested by the determination of non-ortho substituted PCBs in technical mixtures (Aroclor 1254 and Aroclor 1242). The results were compared with those obtained by using an HPLC fractionation on a porous graphitic carbon column. Finally, the micro-column fractionation was used for the determination of non-ortho substituted PCBs in native soil samples. |
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