Intercomparison study for the determination of selected polychlorinated biphenyls (PCBs) in feed matrices
Analytical methodology currently employed for the determination of seven indicator PCBs in three compound feeds and fish meals has been evaluated by a collaborative study. The majority of the obtained relative standard deviations of the PCBs varied from 20 to 30%. By assuming a target relative standard deviation of 22% for the analytical results, the statistical evaluation showed that about 80% of the participating laboratories delivered data within an acceptable range defined by range of +/- 44% of the assigned concentration in the test materials. However, between 10 and 20% of the participating laboratories reported unacceptable results.
Bibliographic Reference: An article published in: Fresenius Journal of Analytical Chemistry, Vol.371 (2001), pp.994-1000
Record Number: 200114209 / Last updated on: 2002-01-02
Original language: en
Available languages: en