Results 221 to 230 of about 138,584 (263)
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Matrix FTIR spectroscopy of transient species
Annual Meeting Optical Society of America, 1989Matrix studies featuring the FTIR instrumental advantages of resolution and sensitivity for a finite amount of time are described. Ammonia clusters have a complicated spectrum in the N–H stretching region. One antisymmetric and two symmetric stretching modes in the dimer verify an asymmetric cyclic dimer structure.1 Chlorine isotopic splittings have ...
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Terahertz and FTIR spectroscopy of ‘Bisphenol A’
Journal of Molecular Structure, 2014Abstract Time domain terahertz (0.2–2 THz) and FTIR (400–4000 cm−1) spectra of ‘Bisphenol A’ are presented. An average refractive index of 1.34 from 0.2 to 2 THz and an absorption peak at 1.69 THz that is considered as the twisting of aromatic rings with hydroxyl groups along the shared carbon atom are found.
Ramzan Ullah, Han Li, YiMing Zhu
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FTIR spectroscopy of microemulsion structure
Langmuir, 1986Etudes de la structure d'une microemulsion eau dans huile formee en presence d'Aerosol OT (bis(ethyl-2 hexyle) sulfosuccinate de Na)
H. MacDonald, B. Bedwell, Erdogan Gulari
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FTIR Emission spectroscopy of surfaces
Journal of Molecular Structure, 1982Abstract A number of vibrational spectroscopic techniques are available For the study of surfaces, such as ATR, IR reflection-absorption, IR emission, etc. Infrared emission is hardly used, although interesting applications are possible now due to the high sensitivity of Fourier transform IR (FTIR) spectrometers. Two examples, where infrared emission
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In situ FTIR Spectroscopy of Polyaniline
1987The infrared absorption of electrochemically synthesized polyaniline is measured in situ during the electrochemical redox processes in non aqeous electrolytes with Fourier Transform (FTIR) technique. The first oxidation process is associated with a strong increase in the background absorption in addition to vibrational changes due to the benzenoid ...
N. S. Sariciftci +3 more
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FTIR spectroscopy studies of nucleic acid damage
Talanta, 2000Fourier transform infrared (FTIR) spectra of RNA isolated from tumour brain (glioma) and DNA isolated from low-dose gamma-irradiated epididymis cells of rats from the Chernobyl accident zone have been investigated in the 700-4000 cm(-1) region. The total absorbed radiation doses were equal to or less than 57 cGy.
G I, Dovbeshko +3 more
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Collagen types analysis and differentiation by FTIR spectroscopy
Analytical and Bioanalytical Chemistry, 2009Abnormal formation and organization of collagen network is commonly observed in many organ pathologies, but analytical techniques able to reveal the collagen biodistribution are still lacking. In this study, Fourier-transform infrared (FTIR) spectroscopy has been used to analyze type I, III, IV, V, and VI collagens, the most important compounds of ...
Karima, Belbachir +3 more
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Industrial applications of FTIR spectroscopy
SPIE Proceedings, 1994The position and advantages of FT-IR among other analytical techniques are discussed, especially in the surface and microanalyses. Two typical examples of FT-IR applications being done recently in our laboratories are presented. Molecular orientation and surface morphology of mechanically rubbed polyimide films used for the alignment layer of liquid ...
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