Novel polyamide-based nanofibers prepared by electrospinning technique for headspace solid-phase microextraction of phenol and chlorophenols from environmental samples

Bagheri, Habib; Aghakhani, Ali; Baghernejad, Masoud; Akbarinejad, Alireza

doi:10.1016/j.aca.2011.03.016

Cited by 65 publications

(38 citation statements)

References 21 publications

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“…Following the creation of the cone, polymeric nanofibers are ejected toward the conductive collector [27]. This method has been used for preparing sorbents applied in solid-phase extraction [28][29][30][31][32], semimicro-solid phase extraction [33], affinity membranes [34], membrane extraction [35], head space adsorptive microextraction [36] and more recently SPME fibers [27,37].…”

Section: Introductionmentioning

confidence: 99%

Electrospun nanostructured polystyrene as a new coating material for solid-phase microextraction: Application to separation of multipesticides from honey samples

Zali

Jalali

Es-haghi

et al. 2015

Journal of Chromatography B

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Section: Introductionmentioning

confidence: 99%

Electrospun nanostructured polystyrene as a new coating material for solid-phase microextraction: Application to separation of multipesticides from honey samples

Zali

Jalali

Es-haghi

et al. 2015

Journal of Chromatography B

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“…Also, nanofibers have small interfibrous pore sizes, strong penetrability and interaction with other compounds [6]. These characteristics suit the nanofibrous materials particularly well to be used as membranes or sorbents in a wide range of applications across biomedical and environmental areas, such as submicro particles separation [7], protein purification [8], air cleaning [9] and heavy metal ions [10] and dye removal [11,12], extraction of pesticides [13] and environmental pollutants [14,15], although their full potential in environmental applications has not been comprehensively explored. Since the entrapment of the target molecules by the nanostructured materials is facilitated due to its enhanced surface area, a small amount of nanofibers is expected to be sufficient for the extraction; therefore, the volume of desorption solvent is greatly reduced [16].…”

Section: Introductionmentioning

confidence: 99%

“…The concept of electrospinning is not that new, but recently the interests regarding the production of nanofibers for analytical applications have been increased [13][14][15][16][17]. The electrospinning process is based on similar phenomena in electrospray ionization mass spectrometry (ESI/MS) [18].…”

Section: Introductionmentioning

confidence: 99%

Polypyrrole/polyamide electrospun‐based sorbent for microextraction in packed syringe of organophosphorous pesticides from aquatic samples

Bagheri

Ayazi

Aghakhani

et al. 2011

J of Separation Science

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A novel method based on microextraction in packed syringe (MEPS) as sample preparation technique coupled off-line with gas chromatography-mass spectrometry was developed using electrospun nanofibers as sorbent. For electrospinning of polypyrrole/polyamide-based nanofiber, a homogeneous solution containing nylon 6, ferric chloride and pyrrole monomer was prepared and then was drawn into a 2.5-mL syringe. By applying a voltage of 13 kV between the needle of the syringe and an aluminum-foil collector, the nanofibers could be formed on the surface of the collector. The prepared sheet was used as the sorbent for MEPS to analyze some selected organophosphorous pesticides. Important parameters influencing the extraction and desorption processes were optimized. Limits of detection were in the range of 0.04-0.1 ng/mL using time scheduled selected ion monitoring mode, and the relative standard deviation (RSD %) values with four replicates were in the range of 3.7-11.8% at a concentration level of 5 ng/mL. The linearity of the method was in the range of 0.5-500 ng/mL for diazinon and fenithrothion and 0.5-200 ng/mL for the rest of the analytes. The developed method was successfully applied to Zayandeh-roud river water samples, whereas the matrix factors were in the range of 0.87-0.98.

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“…We have previously studied electrospun nanofibers e.g., nylon 6 as sorbent material for sample enrichment before instrumental analysis Aghakhani 2011, 2012;Bagheri et al , 2012aBagheri et al , 2014Bagheri et al , 2012b. NH and C=O functional groups in nylon 6 interact with the polar group of the analytes.…”

Section: Introductionmentioning

confidence: 99%

Preparation of a novel KCC-1/nylon 6 nanocomposite via electrospinning technique

2015

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In this research, a novel nanofibrous composite of KCC-1/nylon 6 was prepared using electrospinning techniques. First, fibrous silica nanospheres (KCC-1) were synthesized via conventional polycondensation method with a new solvent system. The scanning electron microscopy (SEM) images showed a spongy spherical morphology with a uniform distribution of particle sizes and an average diameter of around 305 nm. Synthesized KCC-1 nanospheres are considered as mesoporous materials due to their high BET specific surface area of 576 m 2 g -1 and BJH average pore diameter of 3.28 nm. The KCC-1/nylon 6 composite was fabricated by preparing a dispersion of nanosilica (10-50 % w/w) in a solution of nylon 6 (15 % w/v) in formic acid. Upon applying a high voltage, the nonwoven electrospun KCC-1/nylon 6 composite nanofibers were obtained. The KCC-1 nanospheres were arranged in line along the nylon 6 fibers like rosary beads wrapped in the polymer. Based on the SEM images, we obtained a well-distributed nanocomposite even at higher silica content. The prepared KCC-1/nylon 6 composite showed 29-55 % higher BET specific surface area compared with pure nylon 6 nanofibers which makes it a good candidate to be used as a sorbent material for environmental or drug delivery applications.

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Novel polyamide-based nanofibers prepared by electrospinning technique for headspace solid-phase microextraction of phenol and chlorophenols from environmental samples

Cited by 65 publications

References 21 publications

Electrospun nanostructured polystyrene as a new coating material for solid-phase microextraction: Application to separation of multipesticides from honey samples

Electrospun nanostructured polystyrene as a new coating material for solid-phase microextraction: Application to separation of multipesticides from honey samples

Polypyrrole/polyamide electrospun‐based sorbent for microextraction in packed syringe of organophosphorous pesticides from aquatic samples

Preparation of a novel KCC-1/nylon 6 nanocomposite via electrospinning technique

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