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Convenient Method for Encoding Infrared Spectra Linear in Wavenumber Using the Sadtler Notation

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The Sadtler system is well suited for encoding infrared spectra that are displayed on a linear wavelength scale. However, for spectra presented on a scale linear in wavenumber, the conversion of the wavenumber values of the strongest peaks within each 1 μ interval into microns is tedious. The use of a transparent overlay for conversion requires maintenance of exact alignment of paper and overlay and suffers from the fact that the tenths of a micron lines in the the 13- and 14-μ region are closely spaced and the spacings vary in a nonlinear manner, thereby rendering visual interpolation difficult.

Document Type: Short Communication

DOI: http://dx.doi.org/10.1366/000370267774385083

Affiliations: U. S. Customs Laboratory, New York, New York 10014

Publication date: May 1, 1967

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