Journal of Raman Spectroscopy

Cover image for Vol. 45 Issue 3

March 2014

Volume 45, Issue 3

Pages 211–265

  1. Research articles

    1. Top of page
    2. Research articles
    1. Fourier-transform surface-enhanced Raman spectroscopy (FT-SERS) applied to the identification of natural dyes in textile fibers: an extractionless approach to the analysis (pages 211–218)

      Chiara Zaffino, Silvia Bruni, Vittoria Guglielmi and Eleonora De Luca

      Version of Record online: 9 FEB 2014 | DOI: 10.1002/jrs.4443

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      The combination of a low-energy source of radiation, as in the Fourier transform (FT)-Raman technique, with surface-enhanced Raman (SER) spectroscopy can bring the important advantage of reducing the fluorescence typical of ancient samples and organic dyes. Extractionless both non-hydrolysis and hydrolysis procedures were performed in order to achieve a better insight into the potentialities of FT-SERS for the identification of natural dyes in ancient textiles and works of art.

    2. Resonant Raman scattering of graphite intercalation compounds KC8, KC24, and KC36 (pages 219–223)

      Yu Wang, Pascal Puech, Iann Gerber and Alain Pénicaud

      Version of Record online: 2 FEB 2014 | DOI: 10.1002/jrs.4445

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      Graphite intercalation compounds with potassium are a route to obtain graphene. By varying the excitation energy from UV to infrared, we observe resonance effects for KC36 at 2.5 eV.

    3. Micro-analysis on Chinese over-glaze red decoration of Linshui Kiln from Jin dynasty (1115–1234 ad) (pages 224–227)

      Wentao Hao, Wugan Luo, Yue Chen and Changsui Wang

      Version of Record online: 28 JAN 2014 | DOI: 10.1002/jrs.4447

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      A total of five pieces of porcelain shards covered by red over-glaze decoration from the Linshui kiln produced in the Jin dynasty (1115–1234 ad) were investigated by the combined use of Raman spectroscopy, X-ray diffractometry, and diffuse reflection measurements. Information of the identity, crystal size, and band gap width of the red colorant is obtained. Based on the analytical results, the authors deduce that colorant of the red decoration comprise hematite crystallites with average diameter of 30 nm, and the crystal lattice of hematite is distorted as a result of a lower firing of the over-glaze red decoration.

    4. In-situ and laboratory Raman analysis in the field of cultural heritage: the case of a mural painting (pages 228–237)

      Marco Veneranda, Mireia Irazola, Africa Pitarch, Maitane Olivares, Ane Iturregui, Kepa Castro and Juan Manuel Madariaga

      Version of Record online: 11 FEB 2014 | DOI: 10.1002/jrs.4448

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      A practical comparison between the results of in-situ analysis with the information obtained in laboratory studies of a mural painting shows the usefulness of portable Raman spectroscopy in the field of cultural heritage. The in-situ non-destructive analysis allows identifying every compound that makes up the painting as well as determines which degradation process affects its conservation.

    5. Characterization of colorants and opacifiers in roman glass mosaic tesserae through spectroscopic and spectrometric techniques (pages 238–245)

      E. Basso, C. Invernizzi, M. Malagodi, M. F. La Russa, D. Bersani and P. P. Lottici

      Version of Record online: 17 FEB 2014 | DOI: 10.1002/jrs.4449

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      This work reports the results of an archaeometrical investigation performed, through a multianalytical approach on nineteen glass tesserae from the “Villa dei Quintili” in Rome (2nd century AD). Sn-Pb and Ca antimonates, copper and cobalt ions, as well as micro- and submicro-particles of metallic copper and cuprite (Cu2O) were used to realize glass tiles of different colors revealing an high technological level.

    6. Deconvolution of Raman spectra for the quantification of ternary high-pressure phase equilibria composed of carbon dioxide, water and organic solvent (pages 246–252)

      Julian J. Schuster, Stefan Will, Alfred Leipertz and Andreas Braeuer

      Version of Record online: 25 FEB 2014 | DOI: 10.1002/jrs.4451

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      An evaluation strategy to extract the phase equilibrium data of ternary systems composed of CO2, water and organic solvent at elevated pressures from their Raman spectra is presented. The strategy is based on the combination of fitting weighted Raman spectra of the pure compounds to the measured spectra and deconvoluting Raman peaks in Gaussian and Voigt profiles.

    7. Screening of textiles for contraband drugs using portable Raman spectroscopy and chemometrics (pages 253–258)

      Esam M. A. Ali and Howell G.M. Edwards

      Version of Record online: 28 JAN 2014 | DOI: 10.1002/jrs.4444

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      Portable Raman spectroscopic techniques have been used for the analysis of a range of natural and artificial fibre items of clothing impregnated with drugs of abuse. Definitive evidence for contamination of the items of clothing concerned can be acquired within seconds, without any form of sample pre-treatment. Automated database recognition algorithms and chemometric techniques such as principal component analysis can be used in real life situations to rapidly identify unknown samples.

    8. Overlapping spectral features and new assignment of 2-propanol in the C–H stretching region (pages 259–265)

      Yuanqin Yu, Yuxi Wang, Naiyin Hu, Ke Lin, Xiaoguo Zhou and Shilin Liu

      Version of Record online: 12 FEB 2014 | DOI: 10.1002/jrs.4446

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      The vibrational spectra of gaseous and liquid 2-propanol in the C–H stretching region were investigated by polarized photoacoustic Raman spectroscopy and conventional Raman spectroscopy. With the help of isotope substitution and depolarization ratio measurement as well as quantum chemistry calculation, the overlapping spectral features between the CH and CH3 group were identified, and new assignments were presented.