Determination of PCBs in fatty tissues by means of several detection techniques.
Difficulties with harmonization of analytical procedures and consequently poor comparability of generated data represent in the Czech Republic the main reason for the delay in issuing of updated legislation for polychlorobiphenyls (PCBs) in foodstuffs. This study draws attention to possible errors (overestimations) that can occur during routine determination of these residues in the fat portion of biotic matrices. We demonstrate the gas chromatographic (GC) conditions under which interfering contaminants such as phthalates and/or chlorinated pesticides can be separated from analytes. Discussion is focused on the advantages and drawbacks of GC with an electron capture detector, GC mass spectrometry and GC with an atomic emission detector. Various approaches used for calculation of PCBs contents are compared.
Hajslova
J
J
University of Chemistry and Technology, Department of Food Chemistry and Analysis, Prague, Czech Republic.
Holadova
K
K
Kocourek
V
V
Poustka
J
J
Cuhra
P
P
Raverdino
V
V
D000273:Adipose Tissue / Q000737:chemistry*; D000821:Animal Feed; D000818:Animals; D002417:Cattle; D002849:Chromatography, Gas; D018153:Czech Republic; D004350:Drug Residues / Q000032:analysis*; D004784:Environmental Monitoring; D005506:Food Contamination / Q000032:analysis*; D008401:Gas Chromatography-Mass Spectrometry; D008892:Milk / Q000737:chemistry*; D009153:Mutagens / Q000032:analysis; D011078:Polychlorinated Biphenyls / Q000032:analysis*; D015203:Reproducibility of Results
D009153:Mutagens; C073236:Delor 106; D011078:Polychlorinated Biphenyls