Results 301 to 310 of about 258,334 (337)
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FT-IR microspectroscopy for microbiological studies
Journal of Microbiological Methods, 2000In this article we present an infrared microspectroscopic investigation on Candida albicans microcolonies, taken as a model system for studies on other microorganisms. Excellent Fourier transform infrared (FT-IR) absorption spectra from 4000 to 850 cm(-1) have been collected in only 20 s from sampling areas of 100x100 microm(2) in microcolonies, which ...
F. Orsini +5 more
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MAGIC-LC/FT-IR: A viable interface for HPLC and FT-IR spectrometry
Microchemical Journal, 1989Abstract The interfacing of separation methods with selective detectors has been a long sought after goal. In some instances, such as gas chromatography interfaced with spectrometric methods such as mass spectrometry or Fourier transform infrared spectrometry, considerable success has been achieved. Interfaces with liquid chromatography have been far
James A. de Haseth, Raymond M. Robertson
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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.
Aldo Giorgetti +3 more
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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
Maciej Sitarz, M. Handke, H.H Otto
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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.
John A. Reffner, J. M. Kwiatkoski
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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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Microbiological characterizations by FT-IR spectroscopy
Nature, 1991Infrared signals of microorganisms are highly specific fingerprint-like patterns that can be used for probing the identity of microorganisms. The simplicity and versatility of Fourier-transform infrared spectroscopy (FT-IR) makes it a versatile technique for rapid differentiation, classification, identification and large-scale screening at the ...
Dieter Helm +2 more
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MOISTURE MEASUREMENT BY FT-IR-SPECTROSCOPY [PDF]
Drying Technology, 1994 ABSTRACT This contribution reports on the use of a FT-IR-spectrometer for measuring concentrations during the drying of thin films of Polyvinyl acetate (PVAc) and Methanol. Calibration was carried out by differential weighing. The spectra were taken in transmission mode while dried air was blown over the liquid films. The obtained accuracy was +/− (5% +
Saure, Richard, Gnielinski, Volker
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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 Helm +2 more
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FT-IR spectroscopy in catalysis
Acta Physica Hungarica, 1987Supported metal catalysts are opaque to infrared rotation generally below 1200 cm−1 thereby preventing all the very important vibrations involving surface-adsorbate or “metal-ligand” motions from being observed by the conventional transmission technique. The possible methods which do not suffer from these limitations are summarized in this paper.
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