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https://doi.org/10.1016/j.talanta.2018.07.043
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Campo DC | Valor | Lengua/Idioma |
---|---|---|
dc.contributor.author | Pastor Belda, Marta | - |
dc.contributor.author | Sanchez-López, María José | - |
dc.contributor.author | Campillo Seva, Natalia | - |
dc.contributor.author | Viñas López-Pelegrín, Pilar | - |
dc.contributor.author | Hernández Córdoba, Manuel | - |
dc.contributor.other | Facultades, Departamentos, Servicios y Escuelas::Departamentos de la UMU::Química Analítica | es |
dc.date.accessioned | 2021-11-04T08:08:06Z | - |
dc.date.available | 2021-11-04T08:08:06Z | - |
dc.date.issued | 2018-07 | - |
dc.identifier.citation | Talanta 189 (2018) 543-549 | es |
dc.identifier.issn | 0039-9140 | - |
dc.identifier.uri | http://hdl.handle.net/10201/113703 | - |
dc.description.abstract | This paper presents a procedure for the determination of seven nitrophenols (NPs) in water and soil samples using stir bar sorptive extraction (SBSE) coupled to gas chromatography with mass spectrometry (GC-MS) by means of a thermal desorption unit (TDU). Microwave assisted extraction (MAE) is proposed to release the NPs from the soil matrices into an aqueous phase, prior to their acetylation. The different variables affecting the preconcentration efficiency of SBSE, during both the adsorption and the thermal desorption steps, are studied. As regards the analytical characteristics of the method, the accuracy was measured through recovery studies, re covery percentages in all cases being in the 79–120% range, as well as by analyzing a certified reference ma terial. The precision was evaluated in terms of relative standard deviation, which provided values lower than 15% for both repeatability and reproducibility. The limits of detection were between 0.001 and 0.031 µg L−1 for water and 0.020–0.107 ng g−1 for soil samples. When environmental samples of different origins were analyzed, contents in the 0.01–1.0 µg L−1 and 0.7–40 ng g−1 ranges were obtained for waters and soils, respectively. | es |
dc.format | application/pdf | es |
dc.format.extent | 32 | es |
dc.language | eng | es |
dc.publisher | Elsevier | es |
dc.relation | os autores agradecen el apoyo financiero de la Comunidad Autónoma de la Región de Murcia (CARM, Fundación Séneca, Proyecto 19888/GERM/15), el MINECO de España (Proyecto CTQ2015-68049-R) y la Comisión Europea (FEDER/FEDER). M. Pastor-Belda agradece una beca de la Fundación Séneca, CARM | es |
dc.rights | info:eu-repo/semantics/openAccess | es |
dc.rights | Attribution-NonCommercial-NoDerivatives 4.0 Internacional | * |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/ | * |
dc.subject | Nitrophenols, Soils, Waters, Stir bar sorptive extraction, Thermal desorption, Gas chromatography-mass spectrometry | es |
dc.title | Determination of nitrophenols in environmental samples using stir bar sorptive extraction coupled to thermal desorption gas chromatography-mass spectrometry | es |
dc.type | info:eu-repo/semantics/article | es |
dc.identifier.doi | https://doi.org/10.1016/j.talanta.2018.07.043 | - |
Aparece en las colecciones: | Artículos: Química Analítica |
Ficheros en este ítem:
Fichero | Descripción | Tamaño | Formato | |
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NPs_Talanta.pdf | Determinación de nitrofenoles en suelos usando TD-GC-MS | 509,98 kB | Adobe PDF | ![]() Visualizar/Abrir |
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