Survey of low-level endocrine disrupting pesticides in food matrices in Slovakia
| Autor: | Renáta Húšková, Jarmila Ďurčanská, Mária Andraščíková, Svetlana Hrouzková, Matej Horváth, Eva Matisová |
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| Rok vydání: | 2012 |
| Předmět: |
Chemical ionization
Chromatography Chemistry Health Toxicology and Mutagenesis Public Health Environmental and Occupational Health Soil Science Vegetable food Standard solution Pesticide Quechers Pollution Analytical Chemistry Capillary column Environmental chemistry Environmental Chemistry Sample preparation Waste Management and Disposal Electron ionization Water Science and Technology |
| Zdroj: | International Journal of Environmental Analytical Chemistry. 92:1546-1562 |
| ISSN: | 1029-0397 0306-7319 |
| Popis: | The search on endocrine disrupting chemicals (EDCs) in non-fatty food was evaluated. A fast, high-throughput, accurate, multiresidue method for the analysis of selected EDC pesticides in fruit and vegetable food samples was developed. The QuEChERS technique was used for sample preparation. Fast GC-MS was performed with a narrow-bore capillary column and a quadrupole benchtop detector with electron ionization (EI) and negative chemical ionization (NCI). A part of the work was devoted to the comparison of NCI versus EI approach concerning the sensitivity of detection and to the study of selectivity enhancement in NCI mode. Matrix-matched standard solutions were utilized for calibration. The methods validation was performed. Fortification studies at 1, 5, 10 and 250 µg kg−1 for 35 pesticides in EI mode and 0.1, 1, 5 and 250 µg kg−1 for 28 pesticides in NCI mode were performed. Average recoveries for each fortification level ranged from 70 to 110% with >80% of recoveries between 90 and 110%. Limits of quantif... |
| Databáze: | OpenAIRE |
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