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.
Full text available in Polish in Adobe Acrobat format:https://www.npt.up-poznan.net/pub/art_3_125.pdf
| 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. |
Angelika Beyer
Katedra Chemii Analitycznej
Politechnika Gdańska
ul. Narutowicza 11/12
80-233 Gdańsk
Poland
e-mail: angelika.beyer@gmail.com