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Virtual Journal for Biomedical Optics

Virtual Journal for Biomedical Optics

| EXPLORING THE INTERFACE OF LIGHT AND BIOMEDICINE

  • Editors: Andrew Dunn and Anthony Durkin
  • Vol. 9, Iss. 4 — Apr. 1, 2014

Mid-Infrared, Long Wave Infrared (4-12 μm) Molecular Emission Signatures from Pharmaceuticals Using Laser-Induced Breakdown Spectroscopy (LIBS)

Clayton S.-C. Yang, Ei E. Brown, Eric Kumi-Barimah, Uwe H. Hommerich, Feng Jin, Sudhir B. Trivedi, Alan C. Samuels, and A. Peter Snyder

Applied Spectroscopy, Vol. 68, Issue 2, pp. 226-231 (2014)


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Abstract

In an effort to augment the atomic emission spectra of conventional laser-induced breakdown spectroscopy (LIBS) and to provide an increase in selectivity, mid-wave to long-wave infrared (IR), LIBS studies were performed on several organic pharmaceuticals. Laser-induced breakdown spectroscopy signature molecular emissions of target organic compounds are observed for the first time in the IR fingerprint spectral region between 4-12 μm. The IR emission spectra of select organic pharmaceuticals closely correlate with their respective standard Fourier transform infrared spectra. Intact and/or fragment sample molecular species evidently survive the LIBS event. The combination of atomic emission signatures derived from conventional ultraviolet-visible-near-infrared LIBS with fingerprints of intact molecular entities determined from IR LIBS promises to be a powerful tool for chemical detection.

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Vol. 9, Iss. 4 Virtual Journal for Biomedical Optics

Citation
Clayton S.-C. Yang, Ei E. Brown, Eric Kumi-Barimah, Uwe H. Hommerich, Feng Jin, Sudhir B. Trivedi, Alan C. Samuels, and A. Peter Snyder, "Mid-Infrared, Long Wave Infrared (4-12 μm) Molecular Emission Signatures from Pharmaceuticals Using Laser-Induced Breakdown Spectroscopy (LIBS)," Appl. Spectrosc. 68, 226-231 (2014)
http://www.opticsinfobase.org/vjbo/abstract.cfm?URI=as-68-2-226

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