Gas chromatography on self-assembled, single-walled carbon nanotubes

Analytical Chemistry
Mahesh Karwa, Somenath Mitra

Abstract

High-performance stationary phases, which provide high resolutions and are stable at high temperatures, are of significant importance in gas chromatographic analysis. Carbon nanotubes are nanosized carbon-based sorbents that have a high surface area and a large aspect ratio and are known to be stable at high temperatures. It is, therefore, conceivable that gas chromatography can benefit from their unique properties. This paper reports gas chromatography separations in an open tubular format on self-assembled, single-walled carbon nanotubes (SWNTs) inside silica-lined steel capillary tubing. A SWNT film with an average thickness of 300 nm was self-assembled by a unique, single-step, catalytic chemical vapor deposition (CVD) process consisting of dissolved cobalt and molybdenum salts in ethanol. A variety of organic compounds with varying polarity were separated at high resolution, and the column efficiency demonstrated approximately 1000 theoretical plates/m. Comparison of capacity factors' and isosteric heats of adsorption with a packed column containing a commercial sorbent (Carbopack C) showed comparable results. This demonstrated high capacity and strong sorbate-sorbent interactions on the SWNT phase. Evaluation of the McRey...Continue Reading

References

Jul 26, 1996·Science·A ThessR E Smalley

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Citations

Oct 14, 2010·Analytical and Bioanalytical Chemistry·Chaudhery Mustansar Hussain, Somenath Mitra
Jan 12, 2012·Analytical and Bioanalytical Chemistry·Andrea SpeltiniAntonella Profumo
Jun 9, 2012·The Analyst·M Mittermüller, D A Volmer
Jun 19, 2014·Journal of Chromatography. a·Angelo Antonio D'ArchivioFabrizio Ruggieri
Aug 18, 2009·The Analyst·Chaudhery Mustansar HussainSomenath Mitra
Apr 21, 2017·Analytical and Bioanalytical Chemistry·Xochitli L Osorio BarajasTorsten C Schmidt
Nov 17, 2009·Journal of Chromatography. a·Lidia M Ravelo-PérezMiguel Angel Rodríguez-Delgado
Sep 15, 2006·Analytical Chemistry·Li-Ming YuanZheng-Yu Li
Apr 21, 2017·Journal of Separation Science·Xochitli L Osorio BarajasTorsten C Schmidt
Sep 14, 2007·Chemistry : a European Journal·Zhuo DuJian-Hua Wang
Nov 17, 2010·Electrophoresis·Jochen PauwelsAnn Van Schepdael
May 28, 2009·Journal of Separation Science·Claire AndréYves-Claude Guillaume
May 18, 2011·Se pu = Chinese journal of chromatography·Chunxia WuZhi Wang
May 26, 2007·The Analyst·Carolina Carrillo-CarriónMiguel Valcárcel
May 9, 2012·Lab on a Chip·Klaus B Mogensen, Jörg P Kutter
Dec 11, 2019·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Qiong JiangMin Sun
Jun 5, 2007·Analytical Chemistry·M ValcárcelB M Simonet

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