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Title

Development of a new porous gold SPME fiber for selective and efficient extraction of dodecanethiol followed by GC-MS analysis.

Authors

Hafez, Aly; Wenclawiak, Bernd

Abstract

The efficiency of a porous gold fiber used for solid-phase microextraction (PG-SPME) was investigated for the extraction of dodecanethiol out of ethanolic solution. A commercially available standard SPME (polydimethylsiloxane, carboxen, divinylbenzene-PDMS-Carb-DVB) was used as a reference to compare the extraction efficiency and selectivity of dodecanethiol with the PG-SPME fiber. The porous gold SPME fiber allowed the analysis of self-assembled monolayers on gold by gas chromatography-mass spectrometry (GC-MS). The PG-SPME fiber showed a five times higher peak area for dodecanethiol in GC-MS compared to the standard PDMS-Carb-DVB fiber. [Figure not available: see fulltext.]

Subjects

GOLD; POROUS materials; POLYDIMETHYLSILOXANE; GAS chromatography/Mass spectrometry (GC-MS); ETHANOL

Publication

Analytical & Bioanalytical Chemistry, 2013, Vol 405, Issue 5, p1753

ISSN

1618-2642

Publication type

Academic Journal

DOI

10.1007/s00216-012-6580-8

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