Chromatography on self-assembled carbon nanotubes

Chutarat Saridara, Somenath Mitra

Research output: Contribution to journalArticlepeer-review

128 Scopus citations


Stationary phases that provide high resolutions and are stable at high temperatures are of significant importance in chromatographic analysis. Carbon nanotubes (CNTs) are known to have high thermal and mechanical stability and have the potential to be high-performance separation media that utilize the nanoscale interactions. Here, we report the first application of self-assembled CNTs in long capillary tubes for the development of gas chromatography columns. A film of CNTs was deposited by chemical vapor deposition (CVD) to form the stationary phase in the open tubular format. High-resolution separation of a number of compounds has been achieved. Altering the CVD conditions can vary the thickness and the morphology of the CNT film, which opens the possibility of selectivity tuning. The ability to fabricate long tubes coated with CNTs can be readily employed in other gas- and liquid-phase separations as well.

Original languageEnglish (US)
Pages (from-to)7094-7097
Number of pages4
JournalAnalytical Chemistry
Issue number21
StatePublished - Nov 1 2005

All Science Journal Classification (ASJC) codes

  • Analytical Chemistry


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