Molecular spectroscopy – Information rich detection for gas chromatography

J. Shezmin Zavahir, Yada Nolvachai, Philip J. Marriott

Research output: Contribution to journalReview ArticleResearchpeer-review

Abstract

Molecular spectroscopic detection plays a crucial role in gas chromatography (GC). Some detectors constitute element-selective spectroscopy, where an element-containing species generates the detected signal, e.g. flame photometric detection (S, P, Cu); chemiluminescence detection (S, N). These respond with selective response, usually with excellent analyte detectability and reduced matrix interferences. Classical molecular spectroscopic detectors – Fourier transform infrared, nuclear magnetic resonance, ultraviolet – respond by giving a spectrum characteristic of the (intact) molecule. Molecular structure response plays multi-faceted roles: it produces a unique spectrum of a molecule, provided it is resolved by the column and presented to the detector as a single compound; or the chromatogram can be generated by responding to the total signal, or selectively to a given component of the signal. This review summarises the response, sensitivities, applicability, and recent literature reports of molecular spectroscopic detection. Hyphenation with dual detection and brief comments on multidimensional GC is included.

Original languageEnglish
Pages (from-to)47-65
Number of pages19
JournalTrAC - Trends in Analytical Chemistry
Volume99
DOIs
Publication statusPublished - 1 Feb 2018

Keywords

  • Chemiluminescence detection
  • FPD detection
  • FTIR detection
  • Gas chromatography
  • Hyphenation
  • Mass spectrometry detection
  • MDGC
  • NMR detection
  • UV detection
  • VUV detection

Cite this

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title = "Molecular spectroscopy – Information rich detection for gas chromatography",
abstract = "Molecular spectroscopic detection plays a crucial role in gas chromatography (GC). Some detectors constitute element-selective spectroscopy, where an element-containing species generates the detected signal, e.g. flame photometric detection (S, P, Cu); chemiluminescence detection (S, N). These respond with selective response, usually with excellent analyte detectability and reduced matrix interferences. Classical molecular spectroscopic detectors – Fourier transform infrared, nuclear magnetic resonance, ultraviolet – respond by giving a spectrum characteristic of the (intact) molecule. Molecular structure response plays multi-faceted roles: it produces a unique spectrum of a molecule, provided it is resolved by the column and presented to the detector as a single compound; or the chromatogram can be generated by responding to the total signal, or selectively to a given component of the signal. This review summarises the response, sensitivities, applicability, and recent literature reports of molecular spectroscopic detection. Hyphenation with dual detection and brief comments on multidimensional GC is included.",
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Molecular spectroscopy – Information rich detection for gas chromatography. / Zavahir, J. Shezmin; Nolvachai, Yada; Marriott, Philip J.

In: TrAC - Trends in Analytical Chemistry, Vol. 99, 01.02.2018, p. 47-65.

Research output: Contribution to journalReview ArticleResearchpeer-review

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AU - Nolvachai, Yada

AU - Marriott, Philip J.

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AB - Molecular spectroscopic detection plays a crucial role in gas chromatography (GC). Some detectors constitute element-selective spectroscopy, where an element-containing species generates the detected signal, e.g. flame photometric detection (S, P, Cu); chemiluminescence detection (S, N). These respond with selective response, usually with excellent analyte detectability and reduced matrix interferences. Classical molecular spectroscopic detectors – Fourier transform infrared, nuclear magnetic resonance, ultraviolet – respond by giving a spectrum characteristic of the (intact) molecule. Molecular structure response plays multi-faceted roles: it produces a unique spectrum of a molecule, provided it is resolved by the column and presented to the detector as a single compound; or the chromatogram can be generated by responding to the total signal, or selectively to a given component of the signal. This review summarises the response, sensitivities, applicability, and recent literature reports of molecular spectroscopic detection. Hyphenation with dual detection and brief comments on multidimensional GC is included.

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