Carbon nanotubes: Solid-phase extraction

Ravelo‐Pérez, Lidia M.; Herrera‐Herrera, Antonio V.; Hernández-Borges, Javier; Rodríguez‐Delgado, Miguel Ángel

doi:10.1016/j.chroma.2009.10.083

Cited by 296 publications

(114 citation statements)

References 171 publications

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“…Carbon nanoparticle materials have been successfully used as adsorbent in SPE and SPME for trapping or separation of some organic compounds. 35 As a novel nanomaterial, single and muti-layered-carbon nano-materials have sparked researcher's remarkable interest in recent years. [36][37][38] The introduction of magnetic properties into layered-carbon will combine the high adsorption capacity of the layered-carbon and the separation convenience of the magnetic materials.…”

Section: -31mentioning

confidence: 99%

Extraction of Phthalate Esters in Environmental Water Samples Using Layered-Carbon Magnetic Hybrid Material as Adsorbent Followed by Their Determination with HPLC

Wang¹,

Wu²,

Zang

et al. 2012

Bulletin of the Korean Chemical Society

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In this paper, a layered-carbon-Fe 3 O 4 (LC-Fe 3 O 4 ) hybrid material was synthesized through a facile one-pot solvothermal method and used as the adsorbent for the preconcentration of some phthalate esters (dimethyl phthalate, diethyl phthalate, diallyl phthalate, diisobutyl phthalate and benzyl butyl phthalate) in water samples. The effects of the adsorbent dosage, extraction time, the solution pH and salinity on the adsorption of the phthalate esters (PAEs) were investigated. The magnetic nanocomposite adsorbent could remove and enrich the PAEs from water samples efficiently. After the adsorption, the analytes were desorbed and then determined by high performance liquid chromatography-ultraviolet detection. Under the optimum conditions, the enrichment factors of the method for the analytes were in the range from 161 to 180. A linear response with peak area as the quantification signal was observed in the concentration range from 0.5 to 100 ng mL . The method was suitable for the determination of trace phthalate esters in environmental water samples.

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Section: -31mentioning

confidence: 99%

Extraction of Phthalate Esters in Environmental Water Samples Using Layered-Carbon Magnetic Hybrid Material as Adsorbent Followed by Their Determination with HPLC

Wang¹,

Wu²,

Zang

et al. 2012

Bulletin of the Korean Chemical Society

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“…Carbon exists in a number of allotropic forms, such as fullerenes, CNTs, including single-walled CNTs (SWCNTs) and multi-wall CNTs (MWCNTs), carbon nanohorns, carbon nanocones, carbon nanodisks, carbon nanofibers, nanotube rings, graphene oxide (GO) and graphene (G), and diamonds [22][23][24][25][26]. However, to date, from the analytical point of view, the applications have mainly been focused on the use of fullerenes, CNTs and GO/G.…”

Section: Carbon Nanomaterialsmentioning

confidence: 99%

Recent advances in solid-phase sorbents for sample preparation prior to chromatographic analysis

Wen

Chen

et al. 2014

TrAC Trends in Analytical Chemistry

342

123

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A B S T R A C TSample preparation is a crucial bottleneck in the whole analytical process. Solid-phase sorbents (SPSs) have aroused increasing interest in research on sample preparation, as they have key roles in obtaining high clean-up and enrichment efficiency in the analysis of trace targets present in complex matrices. The objective of this review is to provide a broad overview of the recent advances and applications of SPSs in sample preparation prior to chromatographic analysis, during the period 2008-13. We include SPSs, such as molecularly-imprinted polymers, carbon nanomaterials, metallic nanoparticles and metal organic frameworks, focusing on solid-phase extraction, solid-phase microextraction, matrix solid-phase dispersion and stir-bar sorptive extraction of typical pollutants in environmental, biological, food and pharmaceutical samples. We propose remaining challenges and future perspectives to improve development of new SPSs and to apply them further.

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“…CNTs also show appealing adsorption properties towards organic and inorganic molecules, and they have potential applications as catalyst supports and probes for drug delivery. The combination of structure, dimensions and topology of CNTs has provided attractive physical and chemical properties that are unparalleled by most known materials 4 . The applications of CNTs have also reached the Analytical Chemistry field in which CNTs are being used as matrices in matrix-assisted laser desorption ionization, capillary electrochromatography, and as pseudostationary phases in capillary electrophoresis electrophoresis, as well as new solid-phase extraction materials [5][6][7][8] .…”

Section: Introductionmentioning

confidence: 99%

EFFECT OF SINGLE-WALLED CARBON NANOTUBES ON HYDROXYPROPYL-β-CYCLODEXTRIN STATIONARY PHASE

Chang

Bai

et al. 2013

J. Chil. Chem. Soc.

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In the present work, we describe a novel application of functionalized single-walled carbon nanotubes (SWCNTs) as a stationary phase for the liquid chromatographic separation of polycyclic aromatic hydrocarbons and structurally similar analogues. The SWCNTs were first oxidized to give carboxylic derivatives (SWCNT-COOH), afterwards these were covalently derivatized with hydroxypropyl-β-cyclodextrin (HP-β-CD). Then, the HP-β-CD-SWCNTs were bonded to silica gel with 3-(triethoxysilyl) propyl isocyanate, which were used as a stationary phase to separate the investigated solutes by HPLC. On this stationary phase, eight polycyclic aromatic hydrocarbons were separated using water/methanol (5:5, v/v) as the mobile phase and six structurally similar dipine drugs were also separated using (3:7, v/v) methanol/triethylammonium acetate buffer (0.1%, v/v, pH 4.1) as the mobile phase. The results showed that the HP-β-CD-SWCNTs stationary phase had stronger separation ability for the aromatic hydrocarbons and analogues compared with the HP-β-CD stationary phase. This method can be used to improve the separation efficiency of the β-CD stationary phases, and the HP-β-CD-SWCNTs column can be used for the determination of the aromatic hydrocarbons in wastewater.

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Carbon nanotubes: Solid-phase extraction

Cited by 296 publications

References 171 publications

Extraction of Phthalate Esters in Environmental Water Samples Using Layered-Carbon Magnetic Hybrid Material as Adsorbent Followed by Their Determination with HPLC

Extraction of Phthalate Esters in Environmental Water Samples Using Layered-Carbon Magnetic Hybrid Material as Adsorbent Followed by Their Determination with HPLC

Recent advances in solid-phase sorbents for sample preparation prior to chromatographic analysis

EFFECT OF SINGLE-WALLED CARBON NANOTUBES ON HYDROXYPROPYL-β-CYCLODEXTRIN STATIONARY PHASE

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Carbon nanotubes: Solid-phase extraction

Cited by 296 publications

References 171 publications

Extraction of Phthalate Esters in Environmental Water Samples Using Layered-Carbon Magnetic Hybrid Material as Adsorbent Followed by Their Determination with HPLC

Extraction of Phthalate Esters in Environmental Water Samples Using Layered-Carbon Magnetic Hybrid Material as Adsorbent Followed by Their Determination with HPLC

Recent advances in solid-phase sorbents for sample preparation prior to chromatographic analysis

EFFECT OF SINGLE-WALLED CARBON NANOTUBES ON HYDROXYPROPYL-&#946;-CYCLODEXTRIN STATIONARY PHASE

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EFFECT OF SINGLE-WALLED CARBON NANOTUBES ON HYDROXYPROPYL-β-CYCLODEXTRIN STATIONARY PHASE