Volatile aldehydes sensing in headspace using a room temperature ionic liquid-modified electrochemical microprobe

Toniolo, Rosanna; Dossi, Nicolò; Bortolomeazzi, Renzo; Bonazza, Gregorio; Daniele, Salvatore

doi:10.1016/j.talanta.2019.01.049

Cited by 15 publications

(4 citation statements)

References 34 publications

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“…The unique features of deep eutectic solvents (DES) such as high thermal stability, moderate cost, reduced level of toxicity, excellent solubility, and negligible vapor pressure have attracted their deployment in separation science as green solvents considered to possess competitive advantages over conventional solvents [48][49][50]. In a method described by Mehravar et al [51], DES was synthesized using a different molar ratio of hydrogen bond donor (choline chloride) and hydrogen bond acceptors (oxalic acid, urea, and glycerol).…”

Section: Sdme Applicationsmentioning

confidence: 99%

Overview of Different Modes and Applications of Liquid Phase-Based Microextraction Techniques

et al. 2022

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Liquid phase-based microextraction techniques (LPµETs) have attracted great attention from the scientific community since their invention and implementation mainly due to their high efficiency, low solvent and sample amount, enhanced selectivity and precision, and good reproducibility for a wide range of analytes. This review explores the different possibilities and applications of LPμETs including dispersive liquid–liquid microextraction (DLLME) and single-drop microextraction (SDME), highlighting its two main approaches, direct immersion-SDME and headspace-SDME, hollow-fiber liquid-phase microextraction (HF-LPME) in its two- and three-phase device modes using the donor–acceptor interactions, and electro membrane extraction (EME). Currently, these LPμETs are used in very different areas of interest, from the environment to food and beverages, pharmaceutical, clinical, and forensic analysis. Several important potential applications of each technique will be reported, highlighting its advantages and drawbacks. Moreover, the use of alternative and efficient “green” extraction solvents including nanostructured supramolecular solvents (SUPRASs, deep eutectic solvents (DES), and ionic liquids (ILs)) will be discussed.

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Section: Sdme Applicationsmentioning

confidence: 99%

Overview of Different Modes and Applications of Liquid Phase-Based Microextraction Techniques

et al. 2022

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“…La principal limitación radica en que los aceites por sí mismos no conducen electricidad. Con la finalidad de proveer conductividad se han utilizado electrolitos soporte a base de sales como el acetato de amonio (Fernández et al, 2018;Toniolo et al, 2019).…”

Section: Introductionunclassified

Clasificación de aceites vegetales comestibles de acuerdo con su degradación

Ramirez-Montes

Rodríguez

Santos

et al. 2023

ICBI

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Los aceites vegetales comestibles son ampliamente utilizados en la industria alimentaria principalmente en la fritura profunda. Debido a la elevada temperatura que se aplica en el proceso de freído se produce la degradación del aceite. Los principales compuestos que se forman durante las reacciones oxidativas incluyen aldehídos, cetonas, alcoholes, ácidos carboxílicos, siendo algunos compuestos electroactivos. En este trabajo se evaluó un método de flujo basado en muestreo de espacio de cabeza con detección amperométrica utilizando 1-butil-3-metilimidazolio hexaflourofosfato como electrolito soporte, seguido de componentes principales y análisis de conglomerados con la finalidad de clasificar muestras de oleína de palma, aceite de soya y girasol de acuerdo con su estado de degradación oxidativa. El perfil amperométrico proporcionó información relevante para obtener una clasificación de los tres tipos de aceite vegetal comestible.

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“…Thus, carefully selected surface modification can result in pSi surface properties yielding improved selectivity and/or sensitivity toward a particular gas or analyte. The importance of ionic liquids (ILs) in chemical sensing − has attracted significant attention because of their attractive properties, including the ability to design ILs for the dissolution or extraction of various metals, ions, inorganic gases, organic compounds, biomolecules, and highly recalcitrant materials (e.g., cellulose, asphalt, oil sands). The tailorability of ILs offers a toolbox for tuning molecular interactions, offering a wealth of opportunities in sensor development by controlling surface recognition features.…”

Section: Introductionmentioning

confidence: 99%

Controlling Microarray Feature Spreading and Response Stability on Porous Silicon Platforms by Using Alkene-Terminal Ionic Liquids and UV Hydrosilylation

et al. 2020

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In an attempt to develop reversible sensors based on ionic liquid/porous silicon (IL/pSi) platforms, we introduce an approach using task-specific, alkene-terminal ILs (AT-ILs) for direct grafting to the hydrogen-passivated as prepared-pSi (ap-pSi) surface via UV-hydrosilylation to address previous shortcomings associated with IL pattern impermanence (i.e., spread). By employing photoluminescence emission (PLE) and Fouriertransform infrared (FT-IR) imaging measurements, we demonstrate that the covalent grafting of AT-ILs onto the ap-pSi surface via photochemical hydrosilylation not only mitigates such feature spreading but also greatly improves PLE pattern stability. Significantly, we have discovered that, upon hydrosilylation, the resulting contact pin printed IL features remain stable to repeated challenges by toluene vapors, demonstrating the utility of AT-IL hydrosilylation for producing high-fidelity microarray features on pSi toward robust optical sensory microarrays.

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Volatile aldehydes sensing in headspace using a room temperature ionic liquid-modified electrochemical microprobe

Cited by 15 publications

References 34 publications

Overview of Different Modes and Applications of Liquid Phase-Based Microextraction Techniques

Overview of Different Modes and Applications of Liquid Phase-Based Microextraction Techniques

Clasificación de aceites vegetales comestibles de acuerdo con su degradación

Controlling Microarray Feature Spreading and Response Stability on Porous Silicon Platforms by Using Alkene-Terminal Ionic Liquids and UV Hydrosilylation

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