Nauka Przyroda Technologie

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Angelika Beyer, Marek Biziuk
The comparison of techniques for the clean-up of food extracts containing organochlorine pesticides and polychlorinated biphenyls
Summary.

The research results concerning the development of a procedure for the low-fat food extracts (10-13% fat content) clean-up for the multiresidue analysis of organochlorine pesticides and polychlorinated biphenyls has been presented. The procedure is based on solid phase extraction (SPE) after the microwave-assisted extraction (MAE) of food samples. In order to do this the recoveries of chloroorganic analytes in case of the usage of different extractors and different clean-up techniques were compared. Interferents were removed by SPE technique, the freezing-out followed by SPE or the treatment with H2SO4 followed by SPE. The biggest recoveries for chloroorganic analytes after extraction with an acetonitrile-water (95:5, v/v) mixture and purification using LC-Florisil in SPE technique were obtained. Moreover freezing-out in place of the treatment with H2SO4 has enabled to obtain bigger recoveries of organochlorine pesticides.

Key words: organochlorine pesticides, polychlorinated biphenyls, PCBs, solid phase extraction, food
PDFFull text available in Polish in Adobe Acrobat format:
http://www.npt.up-poznan.net/tom3/zeszyt4/art_125.pdf

For citation:

MLA Beyer, Angelika, and Marek Biziuk. "Porównanie technik oczyszczania ekstraktów z żywności zawierającej pestycydy chloroorganiczne oraz anality z grupy PCB." Nauka Przyr. Technol. 3.4 (2009): #125.
APA Angelika Beyer, Marek Biziuk (2009). Porównanie technik oczyszczania ekstraktów z żywności zawierającej pestycydy chloroorganiczne oraz anality z grupy PCB. Nauka Przyr. Technol. 3 (4), #125
ISO 690 BEYER, Angelika, BIZIUK, Marek. Porównanie technik oczyszczania ekstraktów z żywności zawierającej pestycydy chloroorganiczne oraz anality z grupy PCB. Nauka Przyr. Technol., 2009, 3.4: #125.
Corresponding address:
Angelika Beyer
Katedra Chemii Analitycznej
Politechnika Gdańska
ul. Narutowicza 11/12

80-233 Gdańsk
Poland
e-mail: angelika.beyer@gmail.com
Accepted for print: 7.10.2009