Laser-induced breakdown spectroscopy of alcohols and protein solutions

Journal Article · Tue Apr 15 00:00:00 EDT 2008 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.2926814· OSTI ID:21137071

Melikechi, N; Ding, H; Marcano, O A; Rock, S ^[1]

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1. Center for Research and Education in Optical Science and Applications, Applied Optics Center, and Department of Physics and Pre-Engineering, Delaware State University, 1200 N DuPont Highway, Dover, Delaware 19901 (United States)

We report on the use of laser-induced breakdown spectroscopy for the study of organic samples that exhibit similar elemental composition. We evaluate the method for its potential application for the measurement of small spectroscopic differences between samples such as alcohols and water solution of proteins. We measure differences in the relative amplitudes of the oxygen peaks for alcohols and find that these correlate with the relative amount of oxygen atoms within the molecule. We also show that the spectra of proteins reveal differences that can be used for their detection and identification.

• OSTI ID: 21137071
• Journal Information: AIP Conference Proceedings, Vol. 992, Issue 1; Conference: RIAO/OPTILAS 2007: RIAO: 6. Ibero-American conference on optics; OPTILAS: 9. Latin-American meeting on optics, lasers and applications, Campinas, Sao Paulo (Brazil), 21-26 Oct 2007; Other Information: DOI: 10.1063/1.2926814; (c) 2008 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
ALCOHOLS
AMPLITUDES
AQUEOUS SOLUTIONS
ATOMS
DETECTION
LASER RADIATION
LASER SPECTROSCOPY
MOLECULES
OXYGEN
POTENTIALS
PROTEINS
QUANTITATIVE CHEMICAL ANALYSIS
SPECTROSCOPY