Sample pretreatment and analytical method development for detecting strobilurin pesticides in aqueous matrices
In this study a method development is presented focusing on the measurement of strobilurin pesticides with GC-MS/MS after a Solid Phase Extraction (SPE) preconcentration step. The analysed pesticides were azoxystrobin, dimoxystrobin, famoxadone, fenamidone, fluoxastrobin, kresoxim-methyl, E-metomino...
Elmentve itt :
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| Dokumentumtípus: | Könyv része |
| Megjelent: |
SZAB
Szeged
2012
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| Sorozat: | Proceedings of the International Symposium on Analytical and Environmental Problems
17 |
| Kulcsszavak: | Analitikai kémia |
| Tárgyszavak: | |
| Online Access: | http://acta.bibl.u-szeged.hu/76395 |
| Tartalmi kivonat: | In this study a method development is presented focusing on the measurement of strobilurin pesticides with GC-MS/MS after a Solid Phase Extraction (SPE) preconcentration step. The analysed pesticides were azoxystrobin, dimoxystrobin, famoxadone, fenamidone, fluoxastrobin, kresoxim-methyl, E-metominostrobin, orysastrobin, picoxystrobin, pyraclostrobin and trifloxystrobin. GC parameter optimization, MS Full Scan, Daughter mode and finally Multiple Reaction Monitoring (MRM) analysis had been done to have perfect separation and characteristic transitions. Calibration curves, repeatability and recovery values were determined to describe reliability of the method. During the SPE method development spiked bottled drinking water was used. Four types of cartridges were tested. STRATA-X had been chosen for further analysis with different elution solvents and with different volumes. PDMS/DVB 65 pm SPME fiber had also been chosen amongst three fibers. Parameter optimization such as extraction and desorption time, pH and NaCl dependence were done. Linearity and repeatability tests were carried out. |
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| Terjedelem/Fizikai jellemzők: | 81-84 |
| ISBN: | 978-963-315-066-5 |