Results 291 to 300 of about 1,032,914 (333)

FT-IR studies of cyclogermanates

Vibrational Spectroscopy, 2002
Abstract In the present paper infrared investigations of different cyclogermanates were carried out. Calculations of the vibrations of ideally isolated germanooxygen rings (using PM3 method) have also been carried out. The three-, four-, and six-membered rings have been studied. Calculated and experimental spectra of cyclogermanates, namely: Sr 3 [Ge
M Sitarz, M Handke, H.H Otto
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An overview of recent advances and applications of FT-IR spectroscopy for quality, authenticity, and adulteration detection in edible oils

Critical reviews in food science and nutrition, 2021
Magdi A. A. Mousa, Yangyang Wang, S. A. Antora, A. Al-qurashi, Omer H. M. Ibrahim, Hong-Ju He, Shu Liu, M. Kamruzzaman   +7 more
semanticscholar   +1 more source

Airborne passive FT-IR spectrometry

SPIE Proceedings, 2002
Abstract Rapid airborne identification and quantification of vapor hazards is anenvironmentally important capability for a variety of open-air scenarios. This studydemonstrates the use of a commercially available passive Fourier transform infrared (FT-lR) spectrometer to detect, identify, and quantify ammonia and ethanol vapor signaturesdepending on ...
Robert T. Kroutil, Roger J. Combs, Robert B. Knapp, Gary W. Small   +3 more
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FT-IR spectrometry in materialography

Materials Characterization, 1995
Abstract Fourier transform infrared (FT-IR) spectroscopy was utilized in the analysis of various materials as a complementary technique to scanning electron microscopy during microstructural characterization. Applications included: (1) the identification of resin and filler additives in organometallic cements; (2) differentiation between resin type ...
H.J. Mueller, D. Freeman
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Measures of Bone Mineral Carbonate Content and Mineral Maturity/Crystallinity for FT-IR and Raman Spectroscopic Imaging Differentially Relate to Physical–Chemical Properties of Carbonate-Substituted Hydroxyapatite

Calcified Tissue International, 2021
Erik A. Taylor, C. Mileti, Sandhya Ganesan, Joo Ho Kim, E. Donnelly   +4 more
semanticscholar   +1 more source

Fundamentals of FT-IR

2017
IR spectroscopy is one of the absorption spectroscopies. As found in a UV-vis spectrometer, IR spectrometers were also developed on the same concept of a UV-vis spectrometer involving a dispersive optical element represented by a prism or a diffraction grating.
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FT-IR Studies of Ionomers

1987
Perhaps the most widely accepted model of ionomer superstructure is the multiplet-cluster concept advanced by Eisenberg [1,2]. This framework has dominated the interpretation of many vibrational spectroscopic studies to the extent that specific infrared bands and Raman lines have been separately assigned to multiplets or clusters.
Paul C. Painter, B. A. Brozoski, M. M. Coleman   +2 more
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Capillary GC/FT-IR

Analytical Chemistry, 1983
P R, Griffiths, J A, Haseth, L V, Azarraga   +2 more
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FT-IR Matrix Isolation Studies

1980
Matrix isolation is a technique for trapping isolated molecules of the species to be studied in a large excess of an inert material by rapid condensation at a low temperature, so that the diluent forms a rigid cage or matrix. At a sufficiently low temperature, diffusion of the solute species is prevented and thus reactive species may be stabilized for ...
A. J. Barnes, W. J. Orville-Thomas
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Fehleranalyse mit FT‐IR‐Mikroskopie

Nachrichten aus der Chemie, 2008
AbstractZur Analyse von Fehlstellen, deren Ausdehnung im Produkt wenige Millimeter oder Mikrometer beträgt, dienen mikroskopische Techniken. Die Fourier‐Transform‐ Infrarot‐(FT‐IR‐)Spektroskopie bestimmt die chemische Beschaffenheit von Fehlstellen mit hoher Ortsauflösung.
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