Sol‐Gel Coatings and Monoliths in Analytical Sample Preparation

Segro, Scott S.; Malik, Abdul

doi:10.1002/9780813823621.ch22

Cited by 1 publication

(2 citation statements)

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“…The presented data (Fig. 11) clearly demonstrated excellent stability of the sol–gel germania triblock polymer coating under hot solvent environment 175. This is also indicative of the suitability of such germania‐based sol–gel phases in conjunction with high‐temperature LC.…”

Section: Sol–gel Cmementioning

confidence: 99%

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Sol–gel microextraction phases for sample preconcentration in chromatographic analysis

Segro

Tran

Kesani

et al. 2010

J of Separation Science

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Sol-gel technology provides a simple and reliable method for solid-phase microextraction (SPME) fiber preparation through in situ creation of surface-bonded organic-inorganic hybrid coatings characterized by enhanced thermal stability and solvent-resistance properties that are important for the coupling of SPME with GC and HPLC, respectively. The sol-gel coating technology has led to the development of an extensive array of sol-gel sorbent coatings for SPME. In this article, sol-gel microextraction coatings are reviewed, with particular attention on their synthesis, characterization, and applications in conjunction with GC and HPLC analyses. In addition, the development of sol-gel-coated stir bars, their inherent advantages, and applications are discussed. Next, the development and applications of sol-gel capillary microextraction (CME) in hyphenation with GC and HPLC is extensively reviewed. The newly emerging germania- and titania-based sol-gel microextraction phases look promising, especially in terms of pH and hot solvent stability. Finally, sol-gel monolithic beds for CME are reviewed. Such monolithic beds are in a position to greatly improve the extracting capabilities and enhanced sensitivity in CME.

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Section: Sol–gel Cmementioning

confidence: 99%

“…1, m ‐Toluidine (1.40×10 3 nM); 2, 2,4‐dichlorophenol (3.07×10 2 nM); 3, 9‐anthracenemethanol (9.60×10 2 nM); 4, trans ‐chalcone (4.80×10 1 nM); and 5, phenanthrene (5.61×10 1 nM). Reproduced with permission from 175.…”

Section: Sol–gel Cmementioning

confidence: 99%