Determination of phenolic compounds in air by using cyclodextrin-silica hybrid microporous composite samplers

Mauri-Aucejo, Adela R.; Ponce-Català, Patricia; Belenguer-Sapiña, Carolina; Amorós, Pedro

doi:10.1016/j.talanta.2014.11.057

Cited by 15 publications

(6 citation statements)

References 24 publications

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“…Mauri‐Aucejo et al. compared the difference of retention ability toward PAHs between two organic–inorganic hybrid materials, namely, bound cyclodextrin silica (S1) and included cyclodextrin silica (S2) . S1 was synthesized by covalently bonding the cyclodextrin (CD) to the silica network while S2 was synthesized by physically trapping CD in the cage‐like silica network without any alteration on the CD properties.…”

Section: Application Of Organic–inorganic Hybrid Based Adsorbents In Spementioning

confidence: 99%

Advances in organic–inorganic hybrid sorbents for the extraction of organic and inorganic pollutants in different types of food and environmental samples

Kamaruddin

Ibrahim

et al. 2017

J of Separation Science

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The efficiency of the extraction and removal of pollutants from food and the environment has been an important issue in analytical science. By incorporating inorganic species into an organic matrix, a new material known as an organic-inorganic hybrid material is formed. As it possesses high selectivity, permeability, and mechanical and chemical stabilities, organic-inorganic hybrid materials constitute an emerging research field and have become popular to serve as sorbents in various separaton science methods. Here, we review recent significant advances in analytical solid-phase extraction employing organic-inorganic composite/nanocomposite sorbents for the extraction of organic and inorganic pollutants from various types of food and environmental matrices. The physicochemical characteristics, extraction properties, and analytical performances of sorbents are discussed; including morphology and surface characteristics, types of functional groups, interaction mechanism, selectivity and sensitivity, accuracy, and regeneration abilities. Organic-inorganic hybrid sorbents combined with extraction techniques are highly promising for sample preparation of various food and environmental matrixes with analytes at trace levels.

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Section: Application Of Organic–inorganic Hybrid Based Adsorbents In Spementioning

confidence: 99%

Advances in organic–inorganic hybrid sorbents for the extraction of organic and inorganic pollutants in different types of food and environmental samples

Kamaruddin

Ibrahim

et al. 2017

J of Separation Science

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“…The determination of volatile organic compounds (VOCs) in atmospheric air at the maximum permissible concentration level is often impossible without their preconcentration [1,2]. The adsorption preconcentration, also called solid phase extraction (SPE), is one of the most effective methods of concentration analytes used in air analysis [3,4].…”

Section: Introductionmentioning

confidence: 99%

“…The possibilities of SPE in its most common variant of solid phase microextraction (SPME) for GC are limited by the small mass of the active sorbing phase (0.2-2.0 mg), and, accordingly, the relatively low adsorption capacity of the concentrators, which is insufficient to achieve the low limits of detection (LOD) of the analytes [5][6][7]. Dynamic SPE is based on passing the analyzed gas through a tube with a sorbent, followed by the thermal desorption and the GC determination of the analytes [2,3,8]. Dynamic SPE is carried out using various porous polymer and carbonaceous adsorbents [9][10][11][12][13], including nanocarbon materials with a high specific surface area and hydrophobicity [14][15][16].…”

Section: Introductionmentioning

confidence: 99%

Preconcentration of Volatile Organic Compounds on Carbon Magnetic Sorbents in the Analysis of Air by Using the Configuration Change of the Sorbent Bed during the Transition from Sorption to Thermodesorption GC-FID

Rodinkov,

Postnov,

Spivakovskyi

et al. 2023

Separations

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The new scheme of the rapid preconcentration of volatile organic substances followed by the thermodesorption and gas chromatographic determination by using a flame ionization detector is proposed for the analysis of air. The scheme implies a change in the geometry of the adsorbent layer in a column during the transition from adsorption to thermal desorption steps. The extraction of analytes is carried out in a wide tube, allowing quantitative adsorption at higher flow rates of the analyzed air passed through the magnetic sorbent held in a thin layer retained by a permanent magnet without any supporting frits. Novel magnetic adsorbents composed of magnetite or a zirconia/magnetite core and pyrocarbon shell are developed for this application. At the end of the adsorption step, the magnet moved out of the system, and the adsorbent transferred under the gravity force into a narrow tube, which provides the more efficient heating of the adsorbent and minimal blurring of the analyte zones during the subsequent thermal desorption. The proposed scheme allows a significant reduction (approximately 10 times) of the time required for the preconcentration of analytes, which is illustrated by the GC determination of alcohols (butanol-1, pentanol-1), phenol, and o-cresol in the air.

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“…β-Cyclodextrins (β-CD) is a cyclic oligosaccharide obtained from the enzymatic degradation of starch and composed of seven glucose units [28,29]. β-CD have hydrophilic external surface and hydrophobic internal cavity that provides the amphiphilic characteristic of these molecules [30,31].…”

Section: Introductionmentioning

confidence: 99%

Uncommon Sorption Mechanism of Aromatic Compounds onto Poly(Vinyl Alcohol)/Chitosan/Maleic Anhydride-β-Cyclodextrin Hydrogels

et al. 2020

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Aromatic hydrocarbons are extensive environmental pollutants occurring in both water and air media, and their removal is a priority effort for a healthy environment. The use of adsorbents is among the several strategies used for the remediation of these compounds. In this paper, we aim the synthesis of an amphiphilic hydrogel with the potential for the simultaneous sorption of a set of monocyclic and polycyclic aromatic hydrocarbons associated with toxicity effects in humans. Thus, we start by the synthesis of a copolymer-based in chitosan and β-cyclodextrin previously functionalized with the maleic anhydride. The presence of β-cyclodextrin will confer the ability to interact with hydrophobic compounds. The resulting material is posteriorly incorporated in a cryogel of poly(vinyl alcohol) matrix. We aim to improve the amphiphilic ability of the hydrogel matrix. The obtained hydrogel was characterized by swelling water kinetics, thermogravimetric analysis, rheological measurements, and scanning electron microscopy. The sorption of aromatic hydrocarbons onto the gel is characterized by pseudo-first-order kinetics and Henry isotherm, suggesting a physisorption mechanism. The results show that the presence of maleic anhydride-β-cyclodextrin and chitosan into hydrogels leads to an increase in the removal efficiency of the aromatic compounds. Additionally, the capacity of this hydrogel for removing these pollutants from a fossil fuel sample has also been tested.

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Determination of phenolic compounds in air by using cyclodextrin-silica hybrid microporous composite samplers

Cited by 15 publications

References 24 publications

Advances in organic–inorganic hybrid sorbents for the extraction of organic and inorganic pollutants in different types of food and environmental samples

Advances in organic–inorganic hybrid sorbents for the extraction of organic and inorganic pollutants in different types of food and environmental samples

Preconcentration of Volatile Organic Compounds on Carbon Magnetic Sorbents in the Analysis of Air by Using the Configuration Change of the Sorbent Bed during the Transition from Sorption to Thermodesorption GC-FID

Uncommon Sorption Mechanism of Aromatic Compounds onto Poly(Vinyl Alcohol)/Chitosan/Maleic Anhydride-β-Cyclodextrin Hydrogels

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