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Novel polyamide-based nanofibers prepared by electrospinning technique for headspace solid-phase microextraction of phenol and chlorophenols from environmental samples.
Anal Chim Acta. 2012 Feb 24; 716:34-9.AC

Abstract

A novel solid phase microextraction (SPME) fiber was fabricated by electrospinning method in which a polymeric solution was converted to nanofibers using high voltages. A thin stainless steel wire was coated by the network of polymeric nanofibers. The polymeric nanofiber coating on the wire was mechanically stable due to the fine and continuous nanofibers formation around the wire with a three dimensional structure. Polyamide (nylon 6), due to its suitable characteristics was used to prepare the unbreakable SPME nanofiber. The scanning electron microscopy (SEM) images of this new coating showed a diameter range of 100-200 nm for polyamide nanofibers with a homogeneous and porous surface structure. The extraction efficiency of new coating was investigated for headspace solid-phase microextraction (HS-SPME) of some environmentally important chlorophenols from aqueous samples followed by gas chromatography-mass spectrometry (GC-MS) analysis. Effect of different parameters influencing the extraction efficiency including extraction temperature, extraction time, ionic strength and polyamide amount were investigated and optimized. In order to improve the chromatographic behavior of phenolic compounds, all the analytes were derivatized prior to the extraction process using basic acetic anhydride. The detection limits of the method under optimized conditions were in the range of 2-10 ng L(-1). The relative standard deviations (RSD) (n=3) at the concentration level of 1.7-6.7 ng mL(-1) were obtained between 1 and 7.4%. The calibration curves of chlorophenols showed linearity in the range of 27-1330 ng L(-1) for phenol and monochlorophenols and 7-1000 ng L(-1) for dichloro and trichlorophenols. Also, the proposed method was successfully applied to the extraction of phenol and chlorophenols from real water samples and relative recoveries were between 84 and 98% for all the selected analytes except for 2,4,6 tricholophenol which was between 72 and 74%.

Authors+Show Affiliations

Environmental and Bio-Analytical Laboratories, Department of Chemistry, Sharif University of Technology, Tehran, Iran. bagheri@sharif.eduNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

22284875

Citation

Bagheri, Habib, et al. "Novel Polyamide-based Nanofibers Prepared By Electrospinning Technique for Headspace Solid-phase Microextraction of Phenol and Chlorophenols From Environmental Samples." Analytica Chimica Acta, vol. 716, 2012, pp. 34-9.
Bagheri H, Aghakhani A, Baghernejad M, et al. Novel polyamide-based nanofibers prepared by electrospinning technique for headspace solid-phase microextraction of phenol and chlorophenols from environmental samples. Anal Chim Acta. 2012;716:34-9.
Bagheri, H., Aghakhani, A., Baghernejad, M., & Akbarinejad, A. (2012). Novel polyamide-based nanofibers prepared by electrospinning technique for headspace solid-phase microextraction of phenol and chlorophenols from environmental samples. Analytica Chimica Acta, 716, 34-9. https://doi.org/10.1016/j.aca.2011.03.016
Bagheri H, et al. Novel Polyamide-based Nanofibers Prepared By Electrospinning Technique for Headspace Solid-phase Microextraction of Phenol and Chlorophenols From Environmental Samples. Anal Chim Acta. 2012 Feb 24;716:34-9. PubMed PMID: 22284875.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Novel polyamide-based nanofibers prepared by electrospinning technique for headspace solid-phase microextraction of phenol and chlorophenols from environmental samples. AU - Bagheri,Habib, AU - Aghakhani,Ali, AU - Baghernejad,Masoud, AU - Akbarinejad,Alireza, Y1 - 2011/03/12/ PY - 2010/11/28/received PY - 2011/03/04/revised PY - 2011/03/07/accepted PY - 2012/1/31/entrez PY - 2012/1/31/pubmed PY - 2012/5/15/medline SP - 34 EP - 9 JF - Analytica chimica acta JO - Anal. Chim. Acta VL - 716 N2 - A novel solid phase microextraction (SPME) fiber was fabricated by electrospinning method in which a polymeric solution was converted to nanofibers using high voltages. A thin stainless steel wire was coated by the network of polymeric nanofibers. The polymeric nanofiber coating on the wire was mechanically stable due to the fine and continuous nanofibers formation around the wire with a three dimensional structure. Polyamide (nylon 6), due to its suitable characteristics was used to prepare the unbreakable SPME nanofiber. The scanning electron microscopy (SEM) images of this new coating showed a diameter range of 100-200 nm for polyamide nanofibers with a homogeneous and porous surface structure. The extraction efficiency of new coating was investigated for headspace solid-phase microextraction (HS-SPME) of some environmentally important chlorophenols from aqueous samples followed by gas chromatography-mass spectrometry (GC-MS) analysis. Effect of different parameters influencing the extraction efficiency including extraction temperature, extraction time, ionic strength and polyamide amount were investigated and optimized. In order to improve the chromatographic behavior of phenolic compounds, all the analytes were derivatized prior to the extraction process using basic acetic anhydride. The detection limits of the method under optimized conditions were in the range of 2-10 ng L(-1). The relative standard deviations (RSD) (n=3) at the concentration level of 1.7-6.7 ng mL(-1) were obtained between 1 and 7.4%. The calibration curves of chlorophenols showed linearity in the range of 27-1330 ng L(-1) for phenol and monochlorophenols and 7-1000 ng L(-1) for dichloro and trichlorophenols. Also, the proposed method was successfully applied to the extraction of phenol and chlorophenols from real water samples and relative recoveries were between 84 and 98% for all the selected analytes except for 2,4,6 tricholophenol which was between 72 and 74%. SN - 1873-4324 UR - https://www.unboundmedicine.com/medline/citation/22284875/Novel_polyamide_based_nanofibers_prepared_by_electrospinning_technique_for_headspace_solid_phase_microextraction_of_phenol_and_chlorophenols_from_environmental_samples_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0003-2670(11)00363-1 DB - PRIME DP - Unbound Medicine ER -