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A method for the determination of PCB congeners 77, 126 and 169 in biotic and abiotic matrices.

Research output: Contribution to journalJournal article


  • S. J. Harrad
  • A. P. Sewart
  • R. Broumphrey
  • R. Duarte-Davidson
  • K. C. Jones
<mark>Journal publication date</mark>04/1992
Number of pages8
<mark>Original language</mark>English


An analytical protocol is described for the determination of the toxicologically important PCB congeners 77, 126 and 169 in a wide variety of matrices including human milk and adipose tissue, avian tissue, soil and sewage sludge. Utilising similar containment-enrichment, isotope-dilution principles to those employed in PCDD/F analysis, the method employs liquid chromatography on a Florisiltm microcolumn to separate PCDD/Fs and PCB congeners 77, 126 and 169 from the majority of o-substituted PCBs prior to GC-MS determination. The method is compatible with the analysis of such matrices for PCDDs and PCDFs.