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The results of five collaborative studies concerning the analysis of benzo-a-pyrene (BaP) in creosote by high performance liquid chromatography (HPLC) are presented. Six to twelve laboratories participated in these studies over a time period of three years. These studies were carried out in order to evaluate the method which is described in the CEN standard ENV 1014-3. The concentrations of BaP in creosote samples analysed were in the range of 20 ppm to 550 ppm. Whereas the values for repeatability (5 to 10%) were acceptable in nearly all collaborative trials performed those for reproducibility have improved significantly in the last study (23 to 33%). For the previous four collaborative trials the reasons for the relatively poor reproducibility values, especially for analytes containing low concentrations of BaP, could be detected. They were mainly based on problems with chromatographic separation and with integration. The method described in ENV 1014-3 has been proven to be suitable for the determination of the BaP content in creosote.

Additional information

Authors: ANKLAM E, JRC Ispra (IT);LIPP M, JRC Ispra (IT);MÜLLER A, JRC Ispra (IT);VAN EIJK J, Cindu Chemicals, Uithoorn (NL) Centre Technique de l'Industrie du Boîs, Bruxelles (BE);VAN LEEMPUT M, WEI-IEO Bruxelles (BE);VAN STEERTEGEM G,
Bibliographic Reference: Article: Fresenius Journal of Analytical Chemistry
Record Number: 199611166 / Last updated on: 1996-10-28
Original language: en
Available languages: en
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