Journal
ANALYTICAL AND BIOANALYTICAL CHEMISTRY
Volume 405, Issue 5, Pages 1753-1758Publisher
SPRINGER HEIDELBERG
DOI: 10.1007/s00216-012-6580-8
Keywords
SPME; SAM; GC-MS; PG-SPME; Thiol-analysis
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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.
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