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Abstract
Levels of 13 pesticides in 40 honey samples form Poland are reported. A rapid and sensitive method was developed for the LC-ESI-MS/MS determination of multi-class pesticide residues in honey samples. Liquid-liquid extraction (LLE) on a diatomaceous earth support (requiring the use of small amounts of organic solvent), followed by chromatographic separation on a C18 column and gradient elution were employed. The method quantifies over a dynamic linear range from respective MQLs (0.06-1.3 ng/g) to 5 ng/g. Matrix effects were evaluated by comparing the slopes of matrix-matched and solvent-based calibration curves. The mean recoveries obtained for three fortification levels (0.5, 1.0 and 4.0 ng/g) were 63-117% for most compounds, with an expanded uncertainty of <10%. The results for real honey samples collected from five regions of Poland (Pomerania, Wielkopolska, Lublin Region, Lower and Upper Silesia), showed that residue concentrations were < 5 ng/g and did not pose a threat to human health.
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- Category:
- Articles
- Type:
- artykuł w czasopiśmie wyróżnionym w JCR
- Published in:
-
FOOD CONTROL
no. 22,
pages 914 - 919,
ISSN: 0956-7135 - Language:
- English
- Publication year:
- 2011
- Bibliographic description:
- Kujawski M., Namieśnik J.: Levels of 13 multi-class pesticide residues in Polish honeys determined by LC-ESI-MS/MS// FOOD CONTROL. -Vol. 22, nr. iss. 6 (2011), s.914-919
- DOI:
- Digital Object Identifier (open in new tab) 10.1016/j.foodcont.2010.11.024
- Verified by:
- Gdańsk University of Technology
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