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Solid-phase microextraction coatings based on the metal-organic framework ZIF-8: Ensuring stable and reusable fibers

dc.contributor.authorRocío-Bautista, Priscilla
dc.contributor.authorGutiérrez-Serpa, Adrián
dc.contributor.authorCruz, Alexander John
dc.contributor.authorAmeloot, Rob
dc.contributor.authorAyala-Díaz, Juan
dc.contributor.authorAfonso, Ana M.
dc.contributor.authorPasán, Jorge
dc.contributor.authorRodríguez-Hermida, Sabina
dc.contributor.authorPino, Verónica
dc.date.accessioned2025-01-31T00:18:12Z
dc.date.available2025-01-31T00:18:12Z
dc.date.issued2020-08
dc.description.abstractChemical vapor deposition of MOFs (MOF-CVD) has been used to coat solid-phase microextraction (SPME) fibers with ZIF-8, by exposing ZnO layers to the linker vapor (2-methylimidazole). This ZIF-8 coating has been used as a seed layer in a following solvothermal MOF growth step in order to increase the ZIF-8 thickness. The combined MOF-CVD and solvothermal growth of ZIF-8 on the fibers result in a thickness of ~3 μm, with adequate thermal stability, and mechanical integrity when tested with methanol and acetonitrile ultrasonic treatments. The fibers have been evaluated in direct immersion mode using gas chromatography and flame ionization detection (GC-FID), for a group of target analytes including three polycyclic aromatic hydrocarbons (PAHs) and five personal care products (PCPs). The optimized conditions of the SPME-GC-FID methods include low amount of aqueous sample (5 mL), stirring for 45 min at 35 °C, and desorption at 280 °C for 5 min. The method presents limits of detection down to 0.6 μg L−1; intra-day, inter-day and inter-batch relative standard deviation values lower than 16%, 19%, and 23%, respectively; and a lifetime higher than 70 cycles.es_ES
dc.identifier.issn0014-4894es_ES
dc.identifier.otherdoi.org/10.1016/j.talanta.2020.120910es_ES
dc.identifier.urihttps://hdl.handle.net/10953/4598
dc.language.isoenges_ES
dc.publisherElsevieres_ES
dc.rightsCC0 1.0 Universal*
dc.rights.accessRightsinfo:eu-repo/semantics/openAccesses_ES
dc.rights.urihttp://creativecommons.org/publicdomain/zero/1.0/*
dc.subjectMetal-organic frameworkses_ES
dc.subjectSolid phase extractiones_ES
dc.subjectChemical vapor depositiones_ES
dc.subjectSample preparationes_ES
dc.subjectNew coatingses_ES
dc.titleSolid-phase microextraction coatings based on the metal-organic framework ZIF-8: Ensuring stable and reusable fiberses_ES
dc.typeinfo:eu-repo/semantics/articlees_ES
dc.type.versioninfo:eu-repo/semantics/draftes_ES

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