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Laser-Based Instrument for Electric Dichroism Spectroscopy of Small Molecules

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While the chemical information provided by electric dichroism spectroscopy can be useful for studying the conformation and electronic structures of molecules in solution, the dichroism signals produced at fields approaching the dielectric strength of organic solvents are extremely small and difficult to detect. A double-beam, laser-based instrument for electric dichroism measurements is described which allows detection of dichroism signals corresponding to changes in absorbance of less than 10−6 with only a 1.2-kV high-voltage source.

Keywords: Laser spectroscopy; Spectroscopic techniques; UV-Visible spectroscopy

Document Type: Research Article


Affiliations: 1: Department of Chemistry, University of Utah, Salt Lake City, Utah 84112; present address: Eastman Kodak Company, Chemical Quality Services Division, Kodak Park, Rochester, NY 14650 2: Department of Chemistry, University of Utah, Salt Lake City, Utah 84112

Publication date: May 1, 1986

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