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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
Subject(s):Spectroscopy as an analytical tool
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.
Issue Date:25-Jun-20
Publisher:International Symposium on Molecular Spectroscopy
Citation Info:APS
Genre:CONFERENCE PAPER/PRESENTATION
Type:Text
Language:English
URI:http://hdl.handle.net/2142/107472
Date Available in IDEALS:2020-06-26


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