A rapid and sensitive analysis of dithiocarbamate fungicides using modified QuEChERS method and liquid chromatography-tandem mass spectrometry
| Autor: | Toshiaki Yoshioka, Yasushi Nagatomi, Koichi Harayama, Ayano Kakitani |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
chemistry.chemical_classification
Chromatography Health Toxicology and Mutagenesis 010401 analytical chemistry Extraction (chemistry) food and beverages 02 engineering and technology 021001 nanoscience & nanotechnology Mass spectrometry Quechers 01 natural sciences 0104 chemical sciences Fungicide Dimethyl sulfate chemistry.chemical_compound chemistry Liquid chromatography–mass spectrometry Insect Science Mancozeb Original Article 0210 nano-technology Dithiocarbamate |
| Zdroj: | Journal of pesticide science. 42(4) |
| ISSN: | 1348-589X |
| Popis: | We herein present a method for the analysis of 10 dithiocarbamate fungicides (DTCs) in beer, fruit juice, and malt samples, where the DTCs were converted into water-soluble sodium salts in the presence of NaHCO3 prior to methylation using dimethyl sulfate. Extraction of the methylated compounds from matrices was performed using a "quick, easy, cheap, effective, rugged, and safe" (QuEChERS) method. Following a dispersive solid-phase extraction as a clean-up step, the methylated compounds were detected by liquid chromatography-tandem mass spectrometry. Performance evaluation was carried out on beer, fruit juice, and malt samples using representative compounds. Accuracies of the spiked compounds from the various matrices ranged from 92.2 to 112.6%, and the limits of quantification of propineb, mancozeb, and thiuram were |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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