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  • 1995-1999  (7)
  • Chemistry  (7)
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  • 1
    Electronic Resource
    Electronic Resource
    Palaeodental studies using FT-Raman spectroscopy (1995)
    New York, NY [u.a.] : Wiley-Blackwell
    Biospectroscopy 1 (1995), S. 29-36 
    Details
    ISSN: 1075-4261
    Keywords: Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Physics
    Notes: The FT-Raman vibrational spectrum of a child's deciduous exfoliated tooth has been analysed and the spectral features assigned to hydroxyapatite and protein. Comparisons made with older teeth from a Romano-British burial site (∼ 2k years) and fossilised animal teeth (∼ 1 M-70 M years) indicate that the organic protein component has disappeared with interment, whereas spectroscopic features due to the inorganic phosphatic matrix are common to all samples, modern and ancient. The application of the technique to the non-destructive analysis of archaeological samples and the recording of spectra from interred samples without detriment from fluorescent material is demonstrated. © 1995 John Wiley & Sons, Inc.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/bspy.350010105
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Fourier transform Raman spectroscopic study of hydrogen bonding in 2,5-dimercapto-1,3,4-thiadiazole using an environmental chamberThis paper is dedicated to Professor D. A. Long on the occasion of his 70th birthday. (1995)
    Chichester [u.a.] : Wiley-Blackwell
    Journal of Raman Spectroscopy 26 (1995), S. 617-622 
    Details
    ISSN: 0377-0486
    Keywords: Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: The bands at 2485 and 940 cm-1 observed in the Raman spectra of 2,5-dimercapto-1,3,4-thiadiazole represent the hydrogen-bonded ν(SH) stretching and δ(C-SH) in-plane bending modes, respectively. A quantitative study of the hydrogen bonding was carried out using intensity measurements of the bands assigned to the hydrogen-bonded and the free δ(C-SH) in-plane deformations at 940 and 919 cm-1, respectively, as a function of temperature. The Fourier transform (FT) Raman spectra were recorded over the temperature range 303-403 K using an environmental chamber fitted into the FT Raman sample compartment. The equilibrium constants between the free and the hydrogen-bonded molecules were determined over this temperature range and the average enthalpy for hydrogen-bond formation was obtained (ΔH° = -3.35 ± 0.2 kJ mol-1).
    Additional Material: 9 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jrs.1250260806
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Scrimshaw: Real or fake? A fourier-transform Raman diagnostic studyThis paper is dedicated to Professor D. A. Long on the occasion of his 70th birthday. (1995)
    Chichester [u.a.] : Wiley-Blackwell
    Journal of Raman Spectroscopy 26 (1995), S. 623-628 
    Details
    ISSN: 0377-0486
    Keywords: Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: The Fourier-transform (FT) Raman spectra of genuine samples of scrimshaw are reported and compared with those of fake scrimshaw, ivory and human milk tooth. The major spectral features in all systems examined were assigned. The application of the FT-Raman technique to the non-destructive diagnostic identification of scrimshaw and simulated scrimshaw artefacts is demonstrated.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jrs.1250260807
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Fourier transform Raman spectroscopic study of fungi (1995)
    Chichester [u.a.] : Wiley-Blackwell
    Journal of Raman Spectroscopy 26 (1995), S. 911-916 
    Details
    ISSN: 0377-0486
    Keywords: Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: Fourier transform (FT) Raman spectra of the cell walls of three species of fungi are reported for the first time, namely (i) Agaricus bisporus, a fruiting bud, (ii) Mortierella genus and (iii) Mucor genus. Some molecular assignments are proposed for the major vibrational features and attributed to chitin, N-acetylglucosamine and (R)-glucan. Preliminary studies indicate that it is possible to use FT-Raman spectroscopy to discriminate between different mixed species in culture media.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jrs.1250260843
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    Paper (German National Licenses)
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  • 5
    Electronic Resource
    Electronic Resource
    Fourier transform Raman spectroscopic study of lithium perchlorate solutions in acrylonitrile (1995)
    Chichester [u.a.] : Wiley-Blackwell
    Journal of Raman Spectroscopy 26 (1995), S. 715-726 
    Details
    ISSN: 0377-0486
    Keywords: Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: Lithium perchlorate solutions in acrylonitrile (propenenitrile), in a range of concentration between 1 and 6 molal, were studied by using Fourier transform Raman spectroscopy. The new band in the v(CN) region proceeding from the bound species Li+… (acrylonitrile)n and the modifications in the C - C stretching band were studied in detail by means of deconvolution and band-fitting procedures. An average solvation number of ca. 2.3 was obtained without any correction for the ion pairing. The data obtained in the analysis of the perchlorate anion v1 (symmetric stretch) band allow us to quantify the concentration of the different species (free perchlorate, solvent-separated ion pairs and contact ion pairs) present, and to obtain a more realistic solvation number for the lithium ion in acrylonitrile solutions. This solvation number was estimated at 3.0 ± 0.1.
    Additional Material: 17 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jrs.1250260819
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    Paper (German National Licenses)
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  • 6
    Electronic Resource
    Electronic Resource
    Remote Raman spectroscopic studies of corrosion products formed on nuclear fuel claddings used in PWR and AGR systems (1995)
    Chichester [u.a.] : Wiley-Blackwell
    Journal of Raman Spectroscopy 26 (1995), S. 757-762 
    Details
    ISSN: 0377-0486
    Keywords: Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: The construction of a remote Raman microscope system with a variable microscope-to-spectrometer distance of up to 3 m is described. Oxidative surface corrosion products on zirconium alloy and stainless-steel nuclear fuel claddings for pressurized water and advanced gas cooled reactor systems produced under various conditions were studied and the potential of the technique for in situ analysis is discussed. Under the conditions studied experimentally, the major corrosion products are found to be α-ZrO2 and α-Fe2O3 for the zirconium alloy and stainless-steel claddings, respectively.
    Additional Material: 8 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jrs.1250260824
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    Paper (German National Licenses)
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  • 7
    Electronic Resource
    Electronic Resource
    Raman spectroscopic studies of silk (1995)
    Chichester [u.a.] : Wiley-Blackwell
    Journal of Raman Spectroscopy 26 (1995), S. 901-909 
    Details
    ISSN: 0377-0486
    Keywords: Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: The Fourier transform Raman spectra of silk at several stages of its processing from raw natural and cultivated cocoons to woven fabric were obtained. The application of near-infrared excitation to the recording of quality Raman spectra from bulk samples, including Russian and Chinese varieties, and from a single 10 μm fibre is demonstrated. Comprehensive vibrational assignments are made for silk and comparisons are made of wild and cultivated silks, bleached and unbleached de-gummed varieties and inner and outer cocoon material.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jrs.1250260842
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    Paper (German National Licenses)
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