Articles with "nontarget screening" as a keyword



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Direct Immersion–Solid-Phase MicroextractionCoupled to Gas Chromatography–Mass Spectrometry and ResponseSurface Methodology for Nontarget Screening of (Semi‑) VolatileMigrants from Food Contact Materials

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Published in 2020 at "Analytical Chemistry"

DOI: 10.1021/acs.analchem.0c00532.s001

Abstract: Toward a more rigorous inspection of food contact materials, the importance of sample preparation for nontarget screening should be addressed. Direct immersion–solid-phase microextraction coupled to gas chromatography mass spectrometry (DI-SPME-GC-MS) was optimized for nontarget screening… read more here.

Keywords: contact materials; methodology; nontarget screening; food ... See more keywords
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Comparison of Software Tools for Liquid Chromatography–High-Resolution Mass Spectrometry Data Processing in Nontarget Screening of Environmental Samples

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Published in 2019 at "Analytical Chemistry"

DOI: 10.1021/acs.analchem.9b04095

Abstract: The field of high-resolution mass spectrometry has undergone a rapid progress in the last years due to instrumental improvements leading to a higher sensitivity and selectivity of instruments. A variety of qualitative screening approaches, summarized… read more here.

Keywords: high resolution; nontarget screening; software; processing ... See more keywords
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Combining Passive Sampling with Suspect and Nontarget Screening to Characterize Organic Micropollutants in Streams Draining Mixed-Use Watersheds

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Published in 2022 at "Environmental Science & Technology"

DOI: 10.1021/acs.est.2c02938

Abstract: Organic micropollutants (OMPs) represent an anthropogenic stressor on stream ecosystems. In this work, we combined passive sampling with suspect and nontarget screening enabled by liquid chromatography–high-resolution mass spectrometry to characterize complex mixtures of OMPs in… read more here.

Keywords: suspect nontarget; nontarget screening; passive sampling; streams draining ... See more keywords
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Discovery of 18 Organophosphate Esters and 3 Organophosphite Antioxidants in Food Contact Materials Using Suspect and Nontarget Screening: Implications for Human Exposure.

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Published in 2022 at "Environmental science & technology"

DOI: 10.1021/acs.est.2c05888

Abstract: In this study of extracts of 100 food contact material (FCM) samples collected from South China, we identified 21 organophosphate esters (OPEs) by suspect screening and seven novel OPEs by characteristic fragments-based nontarget screening. Six… read more here.

Keywords: phosphate; organophosphate esters; food; nontarget screening ... See more keywords
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PFAS-Contaminated Soil Site in Germany: Nontarget Screening before and after Direct TOP Assay by Kendrick Mass Defect and FindPFΔS.

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Published in 2023 at "Environmental science & technology"

DOI: 10.1021/acs.est.2c07969

Abstract: Soil contaminations with per- and polyfluoroalkyl substances (PFAS) are of great concern due to their persistence, leading to continuous, long-term groundwater contamination. A composite sample from contaminated agricultural soil from northwestern Germany (Brilon-Scharfenberg, North Rhine-Westphalia)… read more here.

Keywords: pfas; nontarget screening; kendrick mass; mass defect ... See more keywords
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TracingUrban Wastewater Contaminants into the AtlanticOcean by Nontarget Screening

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Published in 2020 at "Environmental Science & Technology"

DOI: 10.1021/acs.est.9b06114.s001

Abstract: Oceans are the ultimate sink for many of the over 100 million man-made substances. Until now, monitoring was limited to a reduced number of targeted persistent organic pollutants, reaching open waters mainly via atmospheric deposition.… read more here.

Keywords: tracingurban wastewater; wastewater; contaminants atlanticocean; wastewater contaminants ... See more keywords