COMMISSION ON FOOD CHEMISTRY (VI.5)
Title: Collaborative study on novel and conventional
extraction procedures for the determination of toxicologically relevant
PCB congeners in fish
Coordinator(s): G.U.M. Lindstrom, J. de Boer and
A.K.D. Liem (Working
Group: Halogenated Hydrocarbon Environmental Contaminants)
Remarks: Interaction with AOAC (Association of
Official Analytical Chemists) and the European Union (EU) Standards,
Measurement and Testing (SMT) programmes. This project will be carried
out in close cooperation with Commission VI.6: Oils, Fats and Derivatives.
Completion Date: 2001 - project terminated
Expert laboratories (15-25) will collaboratively assess the comparability
of novel extraction techniques such as super critical fluid extraction
(SFE), microwave assisted solvent extraction techniques, and accelerated
extraction with conventional solvent extraction techniques in the determination
of selected polychlorinated biphenyls (PCBs) in fish. Emphasis will
be on the identification and quantification of PCBs considered relevant
for exposure and risk assessments, and on identifying and resolving
problems in the routine application of novel extraction techniques.
Promising developments in the analytical chemistry of PCBs in foods
include the implementation of new extraction techniques to reduce analysis
time. However, there are indications that these novel techniques may
lead to systematical errors in the data, thus complicating and confusing
risk and exposure assessments. The findings from this project will assist
in the impartial comparison of PCB data.
This study has been completed and the results compiled. At a workshop
held on the 27-28 April 2000, and hosted by the Institut Quimic de Sarria
in Barcelona, Spain, rapporteurs were appointed to write a report to
be submitted to JAOAC International.
Last Update: 20 November 2000
Project terminated 31 dec 2001