Results 251 to 260 of about 835,988 (340)

FT-Raman Spectroscopy at 1.339 Micrometers

Applied Spectroscopy, 1994
The usual laser employed for Fourier transform Raman spectroscopy is a Nd:YAG unit lasing at 1.064 μm. In this work, use of the 1.339-μm lasing emission from Nd:YAG has been demonstrated. The sensitivity of this instrument is comparable to that of conventional FT-Raman instruments, and excellent anti-Stokes spectra can be easily obtained.
Kelly J. Asselin, Bruce Chase
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FT-Raman spectra of platymonas subcordiformis

SPIE Proceedings, 2007
Raman spectrum of Platymonas subcordiformis was studied by FT-Raman spectroscopy. The results show that the optimum experiment conditions is that making sample lose solvent with centrifuge, excitation laser power for 360mW and accumulating 70 times. The main peaks of the spectrum are located at 556cm-1, 615cm-1, 880cm-1, 960 cm-1, 1112cm-1, 1457cm-1,
Rong Chen, Yongzeng Li, Lijiang Wang, Lin Ou, Hongxin Lin, Lixin Xie, Huiru Zhuang   +6 more
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Molecular Structure, Spectroscopic (FT-IR, FT-Raman, 13C and 1H NMR) Analysis, HOMO-LUMO Energies, Mulliken, MEP and Thermal Properties of New Chalcone Derivative by DFT Calculation

Materials Today: Proceedings, 2019
Quantum chemical calculations of (E)-3-(4-Hydroxy-3-methoxyphenyl)-1-(4-hydroxyphenyl)prop-2-en-1-one[HMHP-I] were carried out with DFT calculation using B3LYP/6-311++G(d,p) basis set by Gaussian 09W.
M. K. Priya, B. Revathi, V. Renuka, S. Sathya, P. S. Asirvatham   +4 more
semanticscholar   +1 more source

Sampling Methods In FT-Raman Spectroscopy

SPIE Proceedings, 1989
The extension of the Raman technique to the use of excitation wavelengths in the near infrared shows much promise, especially for samples exhibiting strong fluorescence when excited by the visible lasers used in dispersive Raman instrumentation. The dependence of the Raman signal on the fourth power of the excitation wavelength has precluded the common
Philip R. Brierley, Robert J. Rosenthal
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FT Raman spectroscopic studies of wool

Journal of the Society of Dyers and Colourists, 1994
FT Raman spectroscopy has been used to investigate the structure of scoured wool cloth and fibres subjected to hydrogen peroxide bleaching. The advantages of FT Raman spectroscopy over conventional laser Raman and IR spectroscopic techniques are discussed.
L J Hogg, H G M Edwards, D W Farwell, A T Peters   +3 more
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New directions in FT-Raman spectroscopy

SPIE Proceedings, 1994
Although FT-Raman spectroscopy has proven to be applicable to a wide variety of applications, there remains a small number of samples which are not easily analyzed with the technique. Several sampling accessories which have been developed to further expand the applications of FT-Raman spectroscopy are demonstrated.
Janice L. Hellman, Nancy T. Kawai, Carolin Lehner, Paul H. Turner   +3 more
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NIR FT-Raman

2017
D. D. L. Pevelen
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FT-Raman Investigations of Forest Products

Applied Spectroscopy, 1990
FT-Raman spectroscopy has been used to analyze several forest product materials. Spectra of balsa, oak, pine, and redwood have been obtained. These data can be used to differentiate between hard and soft woods by examination of the ratio of the intensities of those bands attributable to cellulose and lignin as well as by the presence (or absence) of a
R. C. Kenton, R. L. Rubinovitz
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FT-Raman spectroscopy of titania hydrolysates

Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 1997
Abstract FT-Raman spectroscopy has been used to study the peptisation of titania hydrolysates produced from tetraisopropyltitanate (TPT), chemically modified by reaction with a number of carboxylic acids. During peptisation with nitric acid at 333 K, a colloidal sol of well crystallised anatase was formed. Similar sols were formed by heating at 333 K
Venz, P A, Frost, R L, Bartlett, J R, Woolfrey, J L   +3 more
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Quantum mechanical and spectroscopic (FT-IR, FT-Raman,1H,13C NMR, UV-Vis) studies, NBO, NLO, HOMO, LUMO and Fukui function analysis of 5-Methoxy-1H-benzo[d]imidazole-2(3H)-thione by DFT studies

Journal of Molecular Structure, 2017
Theoretical analysis of the molecular structure, spectroscopic (FT-IR, FT-Raman, 1 H, 13 C NMR, UV-Vis) studies, and thermodynamic characteristics of 5-Methoxy-1H-benzo[ d ]imidazole-2(3H)-thione (5MBIT) molecule were done by DFT/B3LYP using 6-311++G(d ...
Manju Pandey, S. Muthu, N. Gowda
semanticscholar   +1 more source