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2020
Infrared spectroscopy has a variety of uses in the paper industry, including competitive analysis, quantification of individual components, and identification of contaminants in both the manufacturing process and the product. This chapter reviews instrumentation and techniques that can be used to study paper or paper-related samples.
Michael A. Friese +2 more
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Infrared spectroscopy has a variety of uses in the paper industry, including competitive analysis, quantification of individual components, and identification of contaminants in both the manufacturing process and the product. This chapter reviews instrumentation and techniques that can be used to study paper or paper-related samples.
Michael A. Friese +2 more
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1990
One can really consider multiphoton effects in a two-level system. First one can consider two (or more) laser fields and follow the absorption and eventual re-emission of photons of (slightly) different frequencies. But, second, even if only one photon mode is excited (i.e.
J. Reuss, N. Dam
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One can really consider multiphoton effects in a two-level system. First one can consider two (or more) laser fields and follow the absorption and eventual re-emission of photons of (slightly) different frequencies. But, second, even if only one photon mode is excited (i.e.
J. Reuss, N. Dam
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ChemInform Abstract: IR Spectroscopy
ChemInform, 1995AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
K. BERNHARD, M. GROSJEAN
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1995
The identification of dye structure can usually be conducted using 1H and 13C NMR, mass spectra and elemental analysis, but the chromophoric system of the dye can be determined with the aid of visible and/or near infra-red (NIR) absorption spectra. For instance, advances in quantum chemistry and the application of the newer techniques to dye chemistry ...
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The identification of dye structure can usually be conducted using 1H and 13C NMR, mass spectra and elemental analysis, but the chromophoric system of the dye can be determined with the aid of visible and/or near infra-red (NIR) absorption spectra. For instance, advances in quantum chemistry and the application of the newer techniques to dye chemistry ...
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2005
Infrared spectroscopy deals with the recording of the absorption of radiations in the infrared region of the electromagnetic spectrum. The position of a given infrared absorption is expressed in terms of wavelength in micron μ or more commonly in terms of wavenumber (cm−1) since it is directly proportional to energy.
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Infrared spectroscopy deals with the recording of the absorption of radiations in the infrared region of the electromagnetic spectrum. The position of a given infrared absorption is expressed in terms of wavelength in micron μ or more commonly in terms of wavenumber (cm−1) since it is directly proportional to energy.
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Infrared spectroscopy is a method that analyzes the vibrations of atoms in a molecule. An infrared spectrum is generally acquired by sending infrared light through a sample and calculating how much of the incident radiation is absorbed at each energy level. The frequency of vibration of a section of a sample molecule resembles the energy at absorption.
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Femtosecond 3D IR spectroscopy
2007By using a novel fifth order pulse sequence and Fourier transforming the three coherence times of the response signal, three-dimensional spectra were obtained for a series of model systems.
Feng Ding +3 more
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IR-Overtone Vibration Spectroscopy
1991Some advantages to study intermolecular forces by IR overtone spectra are reported. The overtone intensity is nearly insensitive on interactions contrary to the large intensity increase of fundamental bands. As consequence H-bond equilibria and the structure of H-bonded liquids can be studied easier and in some directions with higher precision ...
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