Optimization of GC Columns with Radially-Elongated Pillars with Different Coatings as Second Dimension of Comprehensive two-Dimensional gas Chromatography (GC×μGC)

Amel Meziani, Sandrien Verloy, Ouassila Ferroukhi, Séverine Tisse, Valerie Peulon-Agasse, Gert Desmet, Pascal Cardinael

Onderzoeksoutput: Meeting abstract (Book)

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Samenvatting

Miniaturization of GC column is of primary importance in space exploration and field analysis. In this study, GC columns with radially-elongated pillars (REP) (L= 70 cm, 75 μm deep and 6.195 mm wide) were coated, then tested in comprehensive two-dimensional gas chromatography. Stationary phases (apolar PDMS, medium polar RTIL based on monocationic phosphonium derivative and polar PEG-1000) were successfully coated using the static method. The solvent evaporation step was optimized using programed vacuum pressure improving the efficiency by approximately 15%. The best efficiency reached up to N = 62,000 theoretical plates. A separation of a mixture of 11 volatile
compounds using a temperature program on a PDMS-coated chip was achieved in les than 36 s with conventional GC system. The coated chips were tested using a microfluidic reverse fill/flush flow modulator in a GC×μGC system. The REP columns showed a high compatibility with the operating conditions in terms of flow rate. A particularly promising feature of the REP columns is their capability to combine high efficiency with high flow rate which is important to obtain an efficient re-injection using microfluidic modulators.
Originele taal-2English
Titel33rd International Symposium on Chromatography (ISC 2022) - Book of Abstracts
RedacteurenAttila Felinger
UitgeverijHungarian Society for Separation Sciences
Pagina's27-27
Aantal pagina's1
ISBN van geprinte versie978-615-5270-74-1
StatusPublished - sep 2022
Evenement33rd International Symposium on Chromatography – ISC 2022 - Budapest, Hungary
Duur: 18 sep 202222 sep 2022

Conference

Conference33rd International Symposium on Chromatography – ISC 2022
Land/RegioHungary
StadBudapest
Periode18/09/2222/09/22

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