PMID- 21496824 OWN - NLM STAT- MEDLINE DCOM- 20110809 LR - 20110428 IS - 1873-3778 (Electronic) IS - 0021-9673 (Linking) VI - 1218 IP - 20 DP - 2011 May 20 TI - Development of a new consumable-free thermal modulator for comprehensive two-dimensional gas chromatography. PG - 3070-9 LID - 10.1016/j.chroma.2011.03.024 [doi] AB - A simple and cost-effective GCxGC modulator requiring no moving parts or consumables, hence suitable for field analysis and monitoring, was developed. The modulator was constructed from a specially designed Silcosteel(R) trapping capillary, installed outside the GC oven, and coated inside with polydimethylsiloxane (PDMS) stationary phase. Dual-stage modulation was accomplished by resistively heating alternate segments of the trap with a custom-designed capacitive discharge power supply. The performance of the proposed modulator was comparable to many GCxGC systems currently in use, with the injection band widths as low as 60 ms at half height. With proper selection of the stationary phase in the trap, the modulator can be used for the analysis of complex mixtures with volatility range spanning from n-C5 to n-C40. CI - Copyright (c) 2011 Elsevier B.V. All rights reserved. FAU - Panic, Ognjen AU - Panic O AD - Department of Chemistry, University of Waterloo, Waterloo, Ontario, Canada. FAU - Gorecki, Tadeusz AU - Gorecki T FAU - McNeish, Christopher AU - McNeish C FAU - Goldstein, Allen H AU - Goldstein AH FAU - Williams, Brent J AU - Williams BJ FAU - Worton, David R AU - Worton DR FAU - Hering, Susanne V AU - Hering SV FAU - Kreisberg, Nathan M AU - Kreisberg NM LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20110321 PL - Netherlands TA - J Chromatogr A JT - Journal of chromatography. A JID - 9318488 RN - 0 (Alkanes) SB - IM MH - Alkanes/chemistry MH - Chromatography, Gas/*instrumentation MH - Cold Temperature MH - Equipment Design MH - Flame Ionization MH - Hot Temperature MH - Models, Chemical MH - Volatilization EDAT- 2011/04/19 06:00 MHDA- 2011/08/10 06:00 CRDT- 2011/04/19 06:00 PHST- 2010/11/29 00:00 [received] PHST- 2011/03/10 00:00 [revised] PHST- 2011/03/10 00:00 [accepted] PHST- 2011/04/19 06:00 [entrez] PHST- 2011/04/19 06:00 [pubmed] PHST- 2011/08/10 06:00 [medline] AID - S0021-9673(11)00372-4 [pii] AID - 10.1016/j.chroma.2011.03.024 [doi] PST - ppublish SO - J Chromatogr A. 2011 May 20;1218(20):3070-9. doi: 10.1016/j.chroma.2011.03.024. Epub 2011 Mar 21.