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Imidazolium-based bifunctional periodic mesoporous organosilicas as a novel sorbent for microextraction by packed sorbent

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Year: 2018
COI code: IRANCC20_513
Paper Language: English

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Authors Imidazolium-based bifunctional periodic mesoporous organosilicas as a novel sorbent for microextraction by packed sorbent

  Kobra Zavar Mousavi - Department of Chemistry, Faculty of Science, Tarbiat Modares University, Tehran, Iran
  Babak karimi - Department of Chemistry, Institute for Advanced Studies in Basic Sciences, Zanjan, Iran
  Shahram Seidi - Department of Analytical Chemistry, K.N. Toosi University of Technology, Tehran, Iran
  Yadollah Yamini - Department of Chemistry, Faculty of Science, Tarbiat Modares University, Tehran, Iran

Abstract:

Microextraction by packed sorbent (MEPS) was adopted as a simple, fast, and on-line sample preparation technique after its introduction in 2004 by Abdel-Rehim [1]. MEPS is a miniaturization of the conventional SPE and very promising technique for sample preparation. Sorbent type is a core aspect of MEPS. MEPS selectivity depends on sorbent type because the analytes are retained by the sorptive materials via different reversible interactions (hydrophobic, polar, and ionic) [2].The present work focuses on the development of imidazolium-based bifunctional periodic mesoporous organosilicas (BFPMO) nanostructure as novel sorbent for MEPS. Here, it is believed the integrating of PMO and IL providing new organic–inorganic hybrid materials that can open novel branch toward to MEPS technique. For this purpose, chlorophenoxy acid (CPA) herbicides were tested as model compounds in aqueous matrices at a trace level. The factors that influenced on the extraction efficiency of CPAs including the number of draw/eject cycles of the sample, draw/eject flow rate, the washing volume of water, the nature of the eluting solvent and ionic strength were investigated and optimized. Finally, the proposed method was successfully applied to the analysis of trace CPAs in environmental samples.

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COI code: IRANCC20_513

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Zavar Mousavi, Kobra; Babak karimi; Shahram Seidi & Yadollah Yamini, 2018, Imidazolium-based bifunctional periodic mesoporous organosilicas as a novel sorbent for microextraction by packed sorbent, 20th Iranian Chemical Congress, مشهد, دانشگاه فردوسي مشهد, https://www.civilica.com/Paper-IRANCC20-IRANCC20_513.htmlInside the text, wherever referred to or an achievement of this article is mentioned, after mentioning the article, inside the parental, the following specifications are written.
First Time: (Zavar Mousavi, Kobra; Babak karimi; Shahram Seidi & Yadollah Yamini, 2018)
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