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Sample Analysis through the use of Centrifugal-Vacuum FT-IR (CV/FT-IR)
Applied Spectroscopy, 1989Sample preparation is currently considered an important bottleneck in the analysis of large numbers of samples by FT-IR spectroscopy. For aqueous or alcohol solutions, because of the very strong solvent absorptions over large regions of the infrared spectrum, extraction of the analyte from solution is often necessary prior to measurement of the ...
Steven Barnett, Ashraf A. Ismail
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FT-IR spectrometry in materialography
Materials Characterization, 1995Abstract 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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Applied Spectroscopy, 1992
The lignin content of pulp is determined from its diffuse reflectance infrared spectrum by an algorithm that calculates the degree of overlap between two spectra. The lignin:cellulose fraction correlates with kappa number, a titrimetric measure of lignin.
Michael A. Friese, Sujit Banerjee
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The lignin content of pulp is determined from its diffuse reflectance infrared spectrum by an algorithm that calculates the degree of overlap between two spectra. The lignin:cellulose fraction correlates with kappa number, a titrimetric measure of lignin.
Michael A. Friese, Sujit Banerjee
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FT-IR studies of cyclogermanates
Vibrational Spectroscopy, 2002Abstract 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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The hyphenation of chromatography and FT-IR
Analytical Chemistry, 1986The challenge of establishing the identities of environmental samples has been met by a combination of chromatography and FT-IR spectrometry. The separative powers of chromatography combined with the very large library of IR spectra yields both qualitative and quantitative information.
Peter R. Griffiths +3 more
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Characterization and Identification of Micro-Organisms by FT-IR Spectroscopy and FT-IR Microscopy
1994A large series of physical techniques has been tested for the characterization of microbial cells. These techniques include gas chromatographic (GC) and high-performance liquid chromatographic (HPLC) techniques, gel electrophoresis, pyrolysis mass spectroscopy, fluorescence and chemiluminescence techniques, flow cytometry, impedance measurements ...
Dieter Naumann +2 more
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FT-IR microspectrometry advances
Nature, 1987Fourier transform infrared (FT-IR) microspectrometry has created a renaissance in infrared analysis, with applications from cosmic dust to the analysis of plastic laminates.
J. M. Kwiatkoski, J. A. Reffner
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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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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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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 +2 more
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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 +2 more
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Universal on-line HPLC/FT-IR and GC/FT-IR direct deposition interface
AIP Conference Proceedings, 1998On-line micro- and semimicro-HPLC/FT-IR interfaces have been developed in our laboratory. These interfaces involve thermospray nebulization of the HPLC effluent and a modification of the Bio-Rad Tracer direct deposition GC/FT-IR interface. The detection limits for on-line narrow-bore HPLC/FT-IR measurements are at the low nanogram level.
Lin-Tao He, Peter R. Griffiths
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