Juan Francisco Ayala-Cabrera

Contributors

Iker Alvarez-Mora, Luan Valdemiro Alves De Oliveira, Juan Francisco Ayala-Cabrera, Saidy Cristina Ayala-Durán et autres

Gas chromatography for environmental analysis

Carles Moreu-Romero, Naroa Lopez-Herguedas, Iker Alvarez-Mora, Mireia Irazola et autres

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Suspect screening boosts bioaccessibility assays of phenolic compounds in food commodities: A proof of concept

Ali Sahragard, Mikel Musatadi, Rosa María Alonso-Salces, Juan Francisco Ayala-Cabrera et autres

The knowledge of the actual oral bioaccessibility of phenolic compounds through food intake in the human gut is a key factor for assessing their potential health benefits. To this end, there is a quest to develop advanced analytical methodologies that are able …

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Towards the comprehensive wide-scope analysis of legacy and emerging contaminants sorbed in microplastics

Uxue Uribe-Martinez, Ashleen Smith, Mikel Musatadi, Thomas Maupas et autres

Microplastics (MPs) are dangerous pollutants, not only considered dangerous due to the risk of their ingestion by living organisms in affected ecosystems, but also because they have the ability to release additives, used in their manufacture, in addition to their capability to …

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Integrated target and suspect screening approach for PFAS monitoring in drinking water: A case study from the Basque Country (Spain)

Anne San Román, Juan Francisco Ayala-Cabrera, Belén González-Gaya, Amaia Irizar et autres

• Optimized and validated HRMS method for 42 PFAS in drinking water at ng/L levels • PFAS were detected in all the basins studied in the Urola and Goierri regions of the Basque Country, and some concentrations increased after the DWTP treatment …

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The benefits of multi-2D LC × LC compared to LC × LC for the analysis of European herbal remedies

Karl Wetzel, Phạm Thị Nhàn, Tetyana Tishakova, T. Niedenthal et autres

Abstract Due to the demand in alternative medicine to treat various diseases, medicinal plants as ancient remedies gained more recent interest for the discovery and isolation of active compounds (Int J Environ Res Public Health. 2020;17(10):3376, J Ethnopharmacol. 2017;199:161-167). As these plant …

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Chemical and Physical Characterisation of Microplastics Present on Beaches of the Cantabrian Coast, Bay of Biscay (Spain)

Thomas Maupas, Aritz Lapazaran, Rubén Darío Beltrán Rodríguez, Olivia Gómez‐Laserna et autres

We investigated the presence, chemical/morphological characteristics, and distribution of microplastics (MPs, 1–5 mm) in three beaches located at the southeast of the Bay of Biscay, an area where this kind of study is scarce. Sampling was carried out in March 2022/2023 and …

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A review of suspect and non-target screening of agriculture-related organic contaminants

I. Vergara-Luis, Laura Righetti, Maitane Olivares, Guillermo Federico Padilla-González et autres

BACKGROUND: Production systems that aim to reduce waste and promote the reuse of materials contribute to more sustainable food systems. However, these approaches can also lead to the accumulation and recirculation of chemical hazards from organic waste to the soil and, ultimately, …

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High-throughput analysis of growth promoters by LC-MS/MS using a novel tube plasma ionisation source

Florian Stappert, Florian Uteschil, Marco Blokland, Oliver Johannes Schmitz et autres

Background The use of estrogenic compounds to promote growth in livestock animals is prohibited in the European Union. They are typically determined by gas chromatography coupled to mass spectrometry (GC–MS) using the electron ionisation source (EI). However, the high fragmentation observed by …

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Sterol analysis in cancer cells using atmospheric pressure ionization techniques

Pia Wittenhofer, Juan Francisco Ayala-Cabrera, Laila Orell, Florian Uteschil et autres

The analysis of sterol biosynthesis poses analytical challenges such as vast concentration differences between precursor molecules and cholesterol as well as the substantial interferences between the sterols and the matrix, resulting in strong ion suppression. LC-MS and 2D-LC-MS may address some of …

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Assessment of the differentiation of Sambucus nigra plant parts using a multi-target and suspect screening by LC-HRMS and ICP-OES

Marvin Häßler, Karl Wetzel, L. Warnecke, T. Niedenthal et autres

Traditional plant medicine is among the most popular and strongest growing forms of alternative medicine. Based on ancient healing practices, it still plays a significant role in the treatment of many medical conditions. Its impact significantly influenced the creation of therapeutic products …

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Exploring Metal–Organic Framework-Coated Blades for Direct and High-Throughput Screening Analysis of Complex Biological Matrices

Isaac Negrín-Santamaría, María J. Trujillo‐Rodríguez, Encarnación Moyano, Juan H. Ayala et autres

High Resolution Image Download MS PowerPoint Slide Ambient ionization mass spectrometry (AIMS) techniques have become an emerging approach over the last years due to their simplicity, permitting high-throughput sample analysis by directly coupling with mass spectrometry while ensuring short analysis times. Among …

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