| Title: | Headspace solid-phase microextraction based on the metal-organic framework CIM-80(Al) coating to determine volatile methylsiloxanes and musk fragrances in water samples using gas chromatography and mass spectrometry |
| Author(s): | Gonzalez-Hernandez P; Pacheco-Fernandez I; Bernardo F; Homem V; Pasan J; Ayala JH; Ratola N; Pino V; |
| Address: | "Laboratorio de Materiales para Analisis Quimico (MAT4LL), Departamento de Quimica, Unidad Departamental de Quimica Analitica, Universidad de La Laguna (ULL), Tenerife, 38206, Spain; Laboratory for Process Engineering, Environment, Biotechnology and Energy (LEPABE), Department of Chemical Engineering, University of Porto, Porto, 4200-465, Portugal. Electronic address: mgonzalh@ull.edu.es. Laboratorio de Materiales para Analisis Quimico (MAT4LL), Departamento de Quimica, Unidad Departamental de Quimica Analitica, Universidad de La Laguna (ULL), Tenerife, 38206, Spain. Electronic address: ipacheco@ull.edu.es. Laboratory for Process Engineering, Environment, Biotechnology and Energy (LEPABE), Department of Chemical Engineering, University of Porto, Porto, 4200-465, Portugal. Electronic address: fabiobernardo@fe.up.pt. Laboratory for Process Engineering, Environment, Biotechnology and Energy (LEPABE), Department of Chemical Engineering, University of Porto, Porto, 4200-465, Portugal. Electronic address: vhomem@fe.up.pt. Laboratorio de Materiales para Analisis Quimico (MAT4LL), Departamento de Fisica, Universidad de La Laguna (ULL), La Laguna, Tenerife, 38206, Spain. Electronic address: jpasang@ull.edu.es. Laboratorio de Materiales para Analisis Quimico (MAT4LL), Departamento de Quimica, Unidad Departamental de Quimica Analitica, Universidad de La Laguna (ULL), Tenerife, 38206, Spain. Electronic address: jayala@ull.edu.es. Laboratory for Process Engineering, Environment, Biotechnology and Energy (LEPABE), Department of Chemical Engineering, University of Porto, Porto, 4200-465, Portugal. Electronic address: nrneto@fe.up.pt. Laboratorio de Materiales para Analisis Quimico (MAT4LL), Departamento de Quimica, Unidad Departamental de Quimica Analitica, Universidad de La Laguna (ULL), Tenerife, 38206, Spain; Instituto Universitario de Enfermedades Tropicales y Salud Publica de Canarias, Universidad de La Laguna (ULL), Tenerife, 38206, Spain. Electronic address: veropino@ull.edu.es" |
| DOI: | 10.1016/j.talanta.2021.122440 |
| ISSN/ISBN: | 1873-3573 (Electronic) 0039-9140 (Linking) |
| Abstract: | "A headspace solid-phase microextraction (HS-SPME) method was developed using the metal-organic framework (MOF) CIM-80(Al) as extraction phase and in combination with gas chromatography-mass spectrometry (GC-MS) for the simultaneous determination of 6 methylsiloxanes and 7 musk fragrances in different environmental waters. The chromatographic separation was optimized in different GC instruments equipped with different detectors, allowing the correct separation and identification of the compounds. The HS-SPME method was optimized using a Box-Behnken experimental design, while the validation was carried out together with the most suitable commercial fiber (divinylbenzene/polydimethylsiloxane) for comparison purposes. The MOF-based coating was particularly efficient for the determination of volatile methylsiloxanes, showing moderately lower limits of detection (of 0.2 and 0.5 mug L(-1)versus 0.6 mug L(-1) for cyclic methylsiloxanes) and slightly better precision (relative standard deviation values lower than 17% versus 22%) than the commercial coating, while avoiding the cross-contamination issues associated to the polymeric composition of commercial fibers. The method was applied for the analysis of seawater and wastewater samples, allowing the quantification of several analytes and the assessment of matrix effects. The proposed HS-SPME method using the CIM-80(Al) fiber constitutes a more environmentally friendly, simpler, and efficient strategy in comparison with other sample preparation methods using different extraction techniques, while the use of a MOF as fiber sorbent constitutes a potential alternative to exploit the features of SPME for the challenging environmental monitoring of these compounds" |
| Keywords: | Environmental water samples Metal-organic frameworks Musk fragrances Personal care products Solid-phase microextraction Volatile methylsiloxanes; |
| Notes: | "PubMed-not-MEDLINEGonzalez-Hernandez, Providencia Pacheco-Fernandez, Idaira Bernardo, Fabio Homem, Vera Pasan, Jorge Ayala, Juan H Ratola, Nuno Pino, Veronica eng Netherlands 2021/06/03 Talanta. 2021 Sep 1; 232:122440. doi: 10.1016/j.talanta.2021.122440. Epub 2021 Apr 23" |
