Characterization of mixtures by gas chromatography coupled to molecular rotational spectroscopy

Neill, Justin L.

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https://hdl.handle.net/2142/107472 Copy

Description

Title

Characterization of mixtures by gas chromatography coupled to molecular rotational spectroscopy

Author(s)

Neill, Justin L.

Contributor(s)

• Armstrong, Daniel W.
• Wahab, M. Farooq
• Thakur, Nimisha
• Talebi, Mohsen
• Muckle, Matt
• Mikhonin, Alex

Issue Date

2020-06-25

Keyword(s)

Spectroscopy as an analytical tool

Date of Ingest

2020-06-26T03:04:27Z

Abstract

Gas chromatography is a gold-standard technique for analysis of mixtures of volatile compounds, and can be coupled to a range of detectors including many allowing for molecular identification (e.g., mass spectrometry). Recently, we have explored the use of molecular rotational resonance spectroscopy, with its extremely high sensitivity to subtle changes in molecular structure, as a rapid detector for gas chromatography effluents. Results from an initial study\footnote{D.W. Armstrong et al., \textit{Angew. Chem. Int. Ed.} 2020, 59, 192-196} will be presented, where GC-MRR with a 75-110 GHz chirped-pulse millimeter-wave spectrometer was used to identify and quantitate mixtures, including co-eluting isotopologues and isotopomers which could not be resolved by other methods. Challenges for ongoing development, including data collection and interpretation, sensitivity optimization, and the column-spectrometer interface, will also be discussed.

Publisher

International Symposium on Molecular Spectroscopy

Type of Resource

Text

Genre of Resource

Conference Paper / Presentation

Language

eng

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http://hdl.handle.net/2142/107472

Copyright and License Information

Copyright 2020 is held by the Author(s)

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