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Towards greater mechanical, thermal and chemical stability in solid-phase microextraction

Bagheri, H ; Sharif University of Technology

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  1. Type of Document: Article
  2. DOI: 10.1016/j.trac.2011.11.004
  3. Abstract:
  4. Solid-phase microextraction (SPME) is a fast, solvent-free technique, which, since its introduction in the 1990s, has been increasingly applied to sample preparation in analytical chemistry. Conventional SPME fibers are fabricated by making a physical bond between the usual silica substrate and the polymeric coatings. However, some applications are limited, as the lifetime and the stability of conventional SPME fibers cannot meet the demands of analyzing relatively non-volatile compounds with more polar moieties. There have been attempts to analyze less volatile compounds by increasing the thermal, physical and chemical stability of the fibers. In this review, we present some new developments in the use of sol-gel technology, molecularly-imprinted polymers (MIPs) and electrochemical deposition to prepare thermally-stable, chemically-bonded, unbreakable SPME fibers
  5. Keywords:
  6. Coating polymer ; Molecularly-imprinted polymer (MIP) ; Polarity ; Sol-gel technology ; SPME fiber ; Coating polymers ; Electrochemical deposition ; Modifier ; Molecularly Imprinted Polymer ; Sample preparation ; Solid-phase microextraction ; Electrodeposition ; Fibers ; Plastic coatings ; Reduction ; Silica ; Sol-gels ; Volatile organic compounds ; Polymers ; Activated carbon ; Aluminum oxide ; Calixarene ; Dimeticone ; Fullerene ; Graphite ; Macrogol ; Molecular imprinted polymer ; Multi walled nanotube ; Polymer ; Silicon dioxide ; Single walled nanotube ; Unclassified drug ; Volatile agent ; Zirconium oxide ; Chemical analysis ; Chemical bond ; Chemical parameters ; Chemical stability ; Composite material ; Electrochemical detection ; High performance liquid chromatography ; Liquid phase microextraction ; Material coating ; Mechanical stability ; Molecular imprinting ; Polymerization ; Priority journal ; Process development ; Review ; Solid phase microextraction ; Solvent extraction ; Surface property ; Thermostability
  7. Source: TrAC - Trends in Analytical Chemistry ; Volume 34 , 2012 , Pages 126-138 ; 01659936 (ISSN)
  8. URL: http://www.sciencedirect.com/science/article/pii/S0165993612000209