Solid phase microextraction and gas chromatography coupled to magnetic sector high resolution mass spectrometry for the ultra-trace determination of contaminants in surface water
| Autor: | Antonio José Nieto-García, Irene Domínguez, F. J. Arrebola, Roberto Romero-González, A. Garrido Frenich, J. L. Martínez Vidal |
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| Rok vydání: | 2017 |
| Předmět: |
Analytical chemistry
02 engineering and technology Dioxins Solid-phase microextraction 01 natural sciences Biochemistry Gas Chromatography-Mass Spectrometry Analytical Chemistry Halogenated Diphenyl Ethers media_common.cataloged_instance Pesticides Polycyclic Aromatic Hydrocarbons European union Solid Phase Microextraction media_common Pollutant Chromatography Chemistry 010401 analytical chemistry Organic Chemistry Extraction (chemistry) General Medicine Contamination 021001 nanoscience & nanotechnology Polychlorinated Biphenyls 0104 chemical sciences Water quality Gas chromatography 0210 nano-technology Surface water Water Pollutants Chemical Environmental Monitoring |
| Zdroj: | Journal of Chromatography A. 1518:15-24 |
| ISSN: | 0021-9673 |
| DOI: | 10.1016/j.chroma.2017.08.061 |
| Popis: | With the aim of monitoring water quality according to the regulations established by the European Union it would be necessary to implement analytical methodologies capable of simultaneously determining a broad range of organic pollutants at ultra-trace levels, allowing for increased sample throughput. In addition, the high number of samples to be analyzed requires a particular focus on setting up fully automated analytical methodologies. In view of that, this study is aimed at the development of a complete automated procedure for the ultra-trace determination of certain pesticides, polycyclic aromatic hydrocarbons (PAHs), brominated diphenyl ethers (BDEs) and polychlorinated biphenyls (PCBs) in surface waters. The proposed method is based on an on-line combination of solid phase microextraction (SPME) and gas chromatography coupled to double-focusing magnetic sector high resolution mass spectrometry (GC-HRMS). SPME as well as GC-HRMS conditions were optimized to achieve maximum extraction efficiency and sensitivity, which was reinforced by using multiple ion detection (MID) as acquisition mode. Using only 19mL of water and with minimum sample manipulation, the method allowed for the determination of 53 compounds exhibiting good linearity (R2>0.99), recoveries between 84 and 118% and relative standard deviation (RSD) values |
| Databáze: | OpenAIRE |
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