Sensitive and selective determination of imidacloprid with magnetic molecularly imprinted polymer by using LC/Q-TOF/MS
| Autor: | Zinar Pinar Gumus, Raif İlktaç |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Microextraction
Lc q tof ms Imidacloprid Endocrine Disruptor Pesticides molecularly imprinted polymer Article chemistry.chemical_compound parasitic diseases Solid-Phase Extraction Mass-Spectrometry chemistry.chemical_classification Detection limit Chromatography high resolution chromatography Molecularly imprinted polymer Water Residues General Chemistry Polymer Samples Organophosphorus Pesticides Agricultural Products chemistry Linear range Magnetic polymer Selectivity Liquid-Chromatography |
| Zdroj: | Turkish Journal of Chemistry |
| ISSN: | 1303-6130 1300-0527 |
| Popis: | In this paper, magnetic-molecularly imprinted polymer was used for the preconcentration of trace levels of imidacloprid in water and apple samples prior to liquid chromatography-quadrupole-time-of-flight mass spectrometric determination. The selectivity of the magnetic polymer was united with the sensitivity and the high resolving power of the chromatographic system. The developed method showed a linear range from 10.0 to 500.0 mu g/L. The quantitative recoveries were obtained for water and apple samples in the range of 92.0%-99.0 %. The relative standard deviations of intra-day and inter-day tests were found to be in the range of 0.8%-1.2% and 1.2%-1.6 %, respectively. In addition, the same magnetic-molecularly imprinted polymer (MMIP) can be used at least ten cycles for the determination of imidacloprid. The preconcentration factor of the method was found to be 2.5, and the total preconcentration procedure can be completed in 1 h. Characterization of synthesised particles were executed with various techniques. Due to its suitable limit of detection, dynamic linear range, sensitivity and selectivity, the developed method seemed to be ideal for the determination and preconcentration of imidacloprid in water and fruit samples. Research Fund of Ege University [18 -EGE-MATAL -003] This work was supported by Research Fund of Ege University for financial support (Grant no: 18 -EGE-MATAL -003). |
| Databáze: | OpenAIRE |
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