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Ionic-liquid-mediated poly(dimethylsiloxane)- grafted carbon nanotube fiber prepared by the sol-gel technique for the head space solid-phase microextraction of methyl tert-butyl ether using GC.
J Sep Sci. 2014 Jan; 37(1-2):127-34.JS

Abstract

A headspace solid-phase microextraction method was developed for the preconcentration and extraction of methyl tert-butyl ether. An ionic-liquid-mediated multiwalled carbon nanotube-poly(dimethylsiloxane) hybrid coating, which was prepared by covalent functionalization of multiwalled carbon nanotubes with hydroxyl-terminated poly(dimethylsiloxane) using the sol-gel technique, was used as solid-phase microextraction adsorbent. This innovative fiber exhibited a highly porous surface structure, high thermal stability (at least 320°C) and long lifespan (over 210 uses). Potential factors affecting the extraction efficiency were optimized. Under the optimum conditions, the method LOD (S/N = 3) was 0.007 ng/mL and the LOQ (S/N = 10) was 0.03 ng/mL. The calibration curve was linear in the range of 0.03-200 ng/mL. The RSDs for one fiber (repeatability, n = 5) at three different concentrations (0.05, 1, and 150 ng/mL) were 5.1, 4.2, and 4.6% and for the fibers obtained from different batches (reproducibility, n = 3) were 6.5, 5.9, and 6.3%, respectively. The developed method was successfully applied to the determination of methyl tert-butyl ether in different real water samples on three consecutive days. The relative recoveries for the spiked samples with 0.05, 1, and 150 ng/mL were between 94-104%.

Authors+Show Affiliations

Department of Chemistry, Faculty of Sciences, Ferdowsi University of Mashhad, Mashhad, Iran.No affiliation info available

Pub Type(s)

Evaluation Study
Journal Article

Language

eng

PubMed ID

24285506

Citation

Vatani, Hossein, and Ali Sarafraz Yazdi. "Ionic-liquid-mediated Poly(dimethylsiloxane)- Grafted Carbon Nanotube Fiber Prepared By the Sol-gel Technique for the Head Space Solid-phase Microextraction of Methyl Tert-butyl Ether Using GC." Journal of Separation Science, vol. 37, no. 1-2, 2014, pp. 127-34.
Vatani H, Yazdi AS. Ionic-liquid-mediated poly(dimethylsiloxane)- grafted carbon nanotube fiber prepared by the sol-gel technique for the head space solid-phase microextraction of methyl tert-butyl ether using GC. J Sep Sci. 2014;37(1-2):127-34.
Vatani, H., & Yazdi, A. S. (2014). Ionic-liquid-mediated poly(dimethylsiloxane)- grafted carbon nanotube fiber prepared by the sol-gel technique for the head space solid-phase microextraction of methyl tert-butyl ether using GC. Journal of Separation Science, 37(1-2), 127-34. https://doi.org/10.1002/jssc.201300796
Vatani H, Yazdi AS. Ionic-liquid-mediated Poly(dimethylsiloxane)- Grafted Carbon Nanotube Fiber Prepared By the Sol-gel Technique for the Head Space Solid-phase Microextraction of Methyl Tert-butyl Ether Using GC. J Sep Sci. 2014;37(1-2):127-34. PubMed PMID: 24285506.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Ionic-liquid-mediated poly(dimethylsiloxane)- grafted carbon nanotube fiber prepared by the sol-gel technique for the head space solid-phase microextraction of methyl tert-butyl ether using GC. AU - Vatani,Hossein, AU - Yazdi,Ali Sarafraz, Y1 - 2013/11/27/ PY - 2013/07/25/received PY - 2013/08/24/revised PY - 2013/10/17/accepted PY - 2013/11/29/entrez PY - 2013/11/29/pubmed PY - 2014/7/30/medline KW - Carbon nanotubes KW - Ionic liquids KW - Methyl tert-butyl ether KW - Sol-gel technique KW - Solid-phase microextraction SP - 127 EP - 34 JF - Journal of separation science JO - J Sep Sci VL - 37 IS - 1-2 N2 - A headspace solid-phase microextraction method was developed for the preconcentration and extraction of methyl tert-butyl ether. An ionic-liquid-mediated multiwalled carbon nanotube-poly(dimethylsiloxane) hybrid coating, which was prepared by covalent functionalization of multiwalled carbon nanotubes with hydroxyl-terminated poly(dimethylsiloxane) using the sol-gel technique, was used as solid-phase microextraction adsorbent. This innovative fiber exhibited a highly porous surface structure, high thermal stability (at least 320°C) and long lifespan (over 210 uses). Potential factors affecting the extraction efficiency were optimized. Under the optimum conditions, the method LOD (S/N = 3) was 0.007 ng/mL and the LOQ (S/N = 10) was 0.03 ng/mL. The calibration curve was linear in the range of 0.03-200 ng/mL. The RSDs for one fiber (repeatability, n = 5) at three different concentrations (0.05, 1, and 150 ng/mL) were 5.1, 4.2, and 4.6% and for the fibers obtained from different batches (reproducibility, n = 3) were 6.5, 5.9, and 6.3%, respectively. The developed method was successfully applied to the determination of methyl tert-butyl ether in different real water samples on three consecutive days. The relative recoveries for the spiked samples with 0.05, 1, and 150 ng/mL were between 94-104%. SN - 1615-9314 UR - https://www.unboundmedicine.com/medline/citation/24285506/Ionic_liquid_mediated_poly_dimethylsiloxane___grafted_carbon_nanotube_fiber_prepared_by_the_sol_gel_technique_for_the_head_space_solid_phase_microextraction_of_methyl_tert_butyl_ether_using_GC_ L2 - https://doi.org/10.1002/jssc.201300796 DB - PRIME DP - Unbound Medicine ER -