Go to:
Logótipo
Comuta visibilidade da coluna esquerda
Você está em: Start > Publications > View > Ultrathin phenyl-functionalized solid phase microextraction fiber coating developed by sol-gel deposition
Publication

Ultrathin phenyl-functionalized solid phase microextraction fiber coating developed by sol-gel deposition

Title
Ultrathin phenyl-functionalized solid phase microextraction fiber coating developed by sol-gel deposition
Type
Article in International Scientific Journal
Year
2005
Authors
Azenha, M
(Author)
FCUP
View Personal Page You do not have permissions to view the institutional email. Search for Participant Publications View Authenticus page View ORCID page
Malheiro, C
(Author)
Other
The person does not belong to the institution. The person does not belong to the institution. The person does not belong to the institution. Without AUTHENTICUS Without ORCID
Silva, AF
(Author)
FCUP
View Personal Page You do not have permissions to view the institutional email. Search for Participant Publications View Authenticus page View ORCID page
Journal
Vol. 1069
Pages: 163-172
ISSN: 0021-9673
Publisher: Elsevier BV
Scientific classification
FOS: Natural sciences > Chemical sciences
Other information
Authenticus ID: P-000-41K
Abstract (EN): A new sol-gel application for the development of SPME fibers is described. Phenyltrimethoxysilane (PTMOS) and methyltrimethoxysilane (MTMOS) were the sol-gel precursors used at different proportions, together with different water contents, catalyst and reaction time. It was observed that obtaining a good film quality was determinant for a good extracting fiber performance. The film thickness ranged 0.2-1 mu m and could not be increased by multi-coating processes. Apparently, a dense, non-porous microstructure was obtained. These coatings exhibited a strong hydrophobic character, as shown by the capability of extraction of long chain and apolar aromatic compounds, which, was comparable to that of the 100 mu m polydimethylsiloxane (PDMS) and 65 mu m carbowax-divinylbenzene (CW-DVB). The developed fiber has shown high thermal (350 degrees C) and organic solvent stability (ethanol, toluene and dichloromethane), thus bearing adequate characteristics to be associated to GC and potentialities that nay also envisage suitability for HPLC. The new fibers may be useful for the microextraction of non-polar compounds. although at trace levels and in simple matrixes only, due to the susceptibility to competition.
Language: English
Type (Professor's evaluation): Scientific
Contact: mazenha@fc.up.pt
No. of pages: 10
Documents
We could not find any documents associated to the publication.
Related Publications

Of the same journal

Enantiomeric ratios: Why so many notations? (2018)
Another Publication in an International Scientific Journal
Tiritan, ME; Carla Fernandes; Maia, AS; Pinto, M; Cass, QB
Synthesis of glycylglycine-imprinted silica microspheres through different water-in-oil emulsion techniques (2013)
Article in International Scientific Journal
Mariana Ornelas; Dianne Loureiro; Maria Joao Araujo; Eduardo Marques; Cristina Dias Cabral; Manuel Azenha; Fernando Silva
Study of organic compounds-water interactions by partition in aqueous two-phase systems (2013)
Article in International Scientific Journal
Pedro P Madeira; Ana Bessa; Miguel A Teixeira; Luis Alvares Ribeiro; Raquel Aires Barros, MR; Alirio E Rodrigues; Boris Y Zaslavsky
Sorption behaviour of bifenthrin on cork (2005)
Article in International Scientific Journal
Domingues, V; Alves, A; Cabral, M; Delerue Matos, C
Solvent properties governing protein partitioning in polymer/polymer aqueous two-phase systems (2011)
Article in International Scientific Journal
Pedro P. Madeira; Celso Reis; Alírio Rodrigues; Mikheeva, LM; Chait, A; Zaslavsky, BY

See all (117)

Recommend this page Top
Copyright 1996-2020 © Reitoria da Universidade do Porto  I Terms and Conditions  I Acessibility  I Index A-Z  I Guest Book
Page created on: 2020-04-05 15:34:40