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Within a project exploring the application of lab-on-chip GC to in-field analysis of the plant volatile fraction, this study evaluated the performance of a set of planar columns (also known as microchannels, MEMS columns, or microfabricated columns) of different dimensions installed in a conventional GC unit. Circular double-spiral-shaped-channel planar columns with different square/rectangular sections up to 2 m long were applied to the analysis of both essential oils and headspace samples of a group of medicinal and aromatic plants (chamomile, peppermint, sage, rosemary, lavender and bergamot) and of standard mixtures of related compounds; the results were compared to those obtained with reference narrow-bore columns (l:5 m, dc:0.1 mm, df:0.1 μm). The above essential oils and headspaces were first analyzed quali-and quantitatively with planar columns statically coated with conventional stationary …
Publication date: 
15 Jan 2016

Cecilia Cagliero, Stefano Galli, Mario Galli, I Elmi, M Belluce, S Zampolli, Barbara Sgorbini, Patrizia Rubiolo, Carlo Bicchi

Biblio References: 
Volume: 1429 Pages: 329-339
Journal of Chromatography A