An analytical procedure for the individual determination of ortho and non-ortho PCB congeners in sediments, using high performance liquid chromatography (HPLC) preseparation and gas chromatography/ECD detection, is described. Gas chromatography/FTIR spectrometry (GC/FTIR) and gas chromatography/mass spectrometry (GC/MS) were employed for individual congener identification and determination. Sample extraction, clean-up of extract and selective elution procedures were optimized by using reference certified marine sediment samples. Recovery and precision were typically 83% and 16% respectively at 2 ng/g of total PCB content. The proposed procedure, tested by analyzing real sediment samples, showed a reproducibility better than 20% at 13 ng/g PCB level.
|Autori:||FUOCO R; COLOMBINI M; SAMCOVA E|
|Titolo:||INDIVIDUAL DETERMINATION OF ORTHO AND NON-ORTHO SUBSTITUTED POLYCHLOROBIPHENYLS (PCBS) IN SEDIMENTS BY HIGH-PERFORMANCE LIQUID-CHROMATOGRAPHIC PRE-SEPARATION AND GAS CHROMATOGRAPHY/ECD DETECTION|
|Anno del prodotto:||1993|
|Digital Object Identifier (DOI):||10.1007/BF02263839 WC Biochemical Research Methods; Chemistry, Analytical|
|Appare nelle tipologie:||1.1 Articolo in rivista|