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Applied Spectroscopy: Current Research Articles


 
Current Articles in the field of Applied Spectroscopy published online in scientific journals.

The author- or copyrights of the listed research articles below are held by the respective authors or site operators, who are also responsible for the content of the presentations.

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On this page considered biochemistry journals:


Spectroscopy Letters - published by Taylor & Francis -
... provides vital coverage of fundamental developments, new or improved instrumentation, spectroscopic diagnostics, and applications of spectroscopy across all disciplines. Offering communications of original experimental and theoretical work, this journal reports and discusses such methods as NMR, ESR, microwave, NIR, Raman, and UV spectroscopy, together with atomic emission, absorption and fluorescence, X-ray spectroscopy, organic and inorganic mass spectrometry, and electron microscopy.

Applied Spectroscopy Reviews - published by Taylor & Francis -
... provides the latest information on the principles, methods, and applications of all the diverse branches of spectroscopy, from X-ray, infrared, Raman, atomic absorption, and ESR to microwave, mass, NQR, NMR, and ICP. This international, single-source journal presents discussions that relate physical concepts to chemical applications for chemists, physicists, and other scientists using spectroscopic techniques.

Journal of Applied Spectroscopy - published by Springer -
JAS is the English translation of an important publication reporting on key applications of spectroscopy in chemistry, physics, metallurgy, and biology. An increasing number of papers presented here focus on the theory of lasers, as well as on the tremendous potential for the practical applications of lasers in numerous fields and industries.



Current research articles of the mentioned journals:


Influence of radiation damage on lattice vibration parameters in crystalline and vitreous SiO2

Abstract  The influence of radiation damage on a number of lattice vibration parameters in two SiO2 modifications was investigated using IR reflectance spectroscopy. The radiation kinetics of changes in spectral characteristics of SiO2 fundamental vibrations in crystalline and glassy states were determined. The reflectivity coefficient and the frequency of degenerate vibrations as functions of dose showed minima, the locations of which were governed by the type of sample. At high neutron irradiation doses (1021 cm−2), certain characteristics of the bands had the same values for both modified materials. Features of the radiation kinetics of sample dynamic parameters were determined. It was deduced that the specific character of the observed radiation-induced changes in spectral and dynamic parameters of vibrations near degenerate modes was due to both the accumulation of radiation damage and a change in the force field surrounding bridging bonds, which is related to a change in the SiO2 structure.

  • Content Type Journal Article
  • DOI 10.1007/s10812-008-9056-z
  • Authors
    • I. Kh. Abdukadyrova, Uzbekistan Academy of Sciences Institute of Nuclear Physics Ulugbek, Tashkent 100214 Uzbekistan

Source: Journal of Applied Spectroscopy | 30 Aug 2008 | 1:15 pm CEST

Complexation of pyrene and anthracene with human blood plasma

Abstract  We have studied the interaction between polycyclic aromatic hydrocarbons (pyrene and anthracene) with human serum albumin (HSA) and human blood plasma. We have shown that the increase in the fluorescence intensity and the decrease in the polarity index of pyrene on going from an aqueous solution to a pH 7.4 buffer solution of HSA suggests that polycyclic aromatic hydrocarbons are localized in the hydrophobic microphase of the proteins. The increase in the fluorescence intensity for anthracene and pyrene, and also the decrease in the polarity index of pyrene on going from HSA to blood plasma is connected with the fact that polycyclic aromatic hydrocarbons can bind both to plasma proteins and to plasma lipids. When sodium dodecyl sulfate (SDS) is added to the blood plasma in a concentration greater than the critical micelle concentration, we observe an increase in the fluorescence intensity and the polarity index of pyrene. We hypothesize that this is connected with localization of pyrene near the interface between the hydrophobic and hydrophilic phases of the protein-SDS system. We have established that SDS leads to a change in the structure of blood plasma proteins and promotes escape of polycyclic aromatic hydrocarbons from the protein globules.

  • Content Type Journal Article
  • DOI 10.1007/s10812-008-9060-3
  • Authors
    • A. M. Saletskii, M. V. Lomonosov Moscow State University Moscow Russia
    • A. G. Mel’nikov, Saratov State University Saratov Russia
    • A. B. Pravdin, Saratov State University Saratov Russia
    • V. I. Kochubei, Saratov State University Saratov Russia
    • G. V. Meln’ikov, Saratov State Technical University 77 ul. Politekhnicheskaya Saratov 410054 Russia

Source: Journal of Applied Spectroscopy | 30 Aug 2008 | 1:15 pm CEST

Thermally stimulated luminescence of bismuth germanate ceramics with the benitoite, eulitine, and sillenite structures

Abstract  Thermally stimulated luminescence (TSL) of Bi2Ge3O9, Bi4Ge3O12, and Bi12GeO20 and the primary components Bi2O3 and GeO2 was studied under x-ray excitation. Thermal activation energies and frequency factors of trapping centers in the studied ceramics were determined. The relationships of TSL bands of the studied ceramics with maxima at 141–145 and 166–170 K and damage to the Ge sublattice and of TSL bands with maxima at 104–110 and 180–190 K and recombination processes in the Bi sublattice were demonstrated. Recombination processes causing luminescence upon nonequilibrium charge carrier release from trapping centers occur in structural complexes of similar configuration that contain the Bi ion in a nearest environment of O atoms.

  • Content Type Journal Article
  • DOI 10.1007/s10812-008-9057-y
  • Authors
    • O. M. Bordun, Ivan Franko Lvov National University 50 Dragomanov St. Lvov 79005 Ukraine
    • I. I. Kukharskii, Ivan Franko Lvov National University 50 Dragomanov St. Lvov 79005 Ukraine
    • S. I. Gaidai, Volyn State University Lutsk Ukraine

Source: Journal of Applied Spectroscopy | 30 Aug 2008 | 1:15 pm CEST

Light-induced frequency shift of stimulated Raman scattering in Bessel light beams

Abstract  The medium susceptibility related to stimulated Raman scattering (SRS) is known to be a complex value whose imaginary part determines the SRS gain coefficient whereas the real part constitutes a small fraction of the refractive index at the frequencies of the scattered emission that is proportional to the intensity of the exciting beam. Strong transverse nonuniformity of this beam causes focusing of high-frequency components of the scattered light and defocusing of low-frequency ones that inevitably affect their amplification efficiency. The effect for Gaussian pumping is responsible for a slight shift of the SRS gain spectrum towards higher frequencies. The present work analyzes theoretically SRS excited by a Bessel light beam and demonstrates that the axial component of the scattered emission experiences a frequency shift that is much greater than that for the case of Gaussian beam pumping.

  • Content Type Journal Article
  • DOI 10.1007/s10812-008-9053-2
  • Authors
    • P. A. Apanasevich, National Academy of Sciences of Belarus B. I. Stepanov Institute of Physics 68 Nezavisimosti Ave. Minsk 220072 Belarus
    • R. V. Chulkov, National Academy of Sciences of Belarus B. I. Stepanov Institute of Physics 68 Nezavisimosti Ave. Minsk 220072 Belarus
    • G. I. Timofeeva, National Academy of Sciences of Belarus B. I. Stepanov Institute of Physics 68 Nezavisimosti Ave. Minsk 220072 Belarus

Source: Journal of Applied Spectroscopy | 30 Aug 2008 | 1:15 pm CEST

Complex formation between benzene carboxylic acids and β-cyclodextrin

Abstract  Complex formation between benzene carboxylic acids and β-cyclodextrin in aqueous solutions at 290–300 K was studied using UV spectroscopy. The formation of 1:1 supramolecular inclusion compounds β-cyclodextrin-benzene and β-cyclodextrin-salicylic acid was found. Stability constants (Ks) of the complexes and thermodynamic parameters for formation of the inclusion compounds (ΔG, ΔH, and ΔS) were calculated.

  • Content Type Journal Article
  • DOI 10.1007/s10812-008-9047-0
  • Authors
    • L. A. Belyakova, National Academy of Sciences of Ukraine A. A. Chuiko Institute of Surface Chemistry 17 General Naumov St. Kiev 03164 Ukraine
    • D. Yu. Lyashenko, National Academy of Sciences of Ukraine A. A. Chuiko Institute of Surface Chemistry 17 General Naumov St. Kiev 03164 Ukraine

Source: Journal of Applied Spectroscopy | 30 Aug 2008 | 1:15 pm CEST

Model for the analytical signal in atomic absorption spectrometry with electrothermal atomization

Abstract  A method for verification of analytical measurements in electrothermal atomic absorption spectrometry using a phenomenological model for physicochemical atomization processes is discussed. The influence of the sample matrix on basic kinetic parameters of atomization such as the analyte free-atom formation energy and the atomization rate constant has been shown. The similarity of atomization kinetic parameters obtained by calibrating the spectrometer to those for samples under study can be used as a verification criterion for analysis.

  • Content Type Journal Article
  • DOI 10.1007/s10812-008-9046-1
  • Authors
    • Yu. V. Rogulsky, National Academy of Sciences of Ukraine Institute of Applied Physics 58 Petropavlovskaya St. Sumy 40030 Ukraine
    • A. N. Buhay, National Academy of Sciences of Ukraine Institute of Applied Physics 58 Petropavlovskaya St. Sumy 40030 Ukraine
    • A. A. Gudakova, National Academy of Sciences of Ukraine Institute of Applied Physics 58 Petropavlovskaya St. Sumy 40030 Ukraine
    • A. N. Kulik, National Academy of Sciences of Ukraine Institute of Applied Physics 58 Petropavlovskaya St. Sumy 40030 Ukraine

Source: Journal of Applied Spectroscopy | 30 Aug 2008 | 1:15 pm CEST

New model describing interaction between an electromagnetic wave and a molecule

Abstract  The expediency of refining some basic concepts of the common theory of interaction between an electromagnetic field and a substance using a quasi-classical model for the phenomena of absorption and emission of energy and Raman scattering (RS) is considered. The use of the time-dependent Schrodinger equation for obtaining the transition probability constants is discussed. A new model that describes the intensities of the RS lines and involves the explicit introduction of the perturbation operator for the RS spectrum is proposed.

  • Content Type Journal Article
  • DOI 10.1007/s10812-008-9049-y
  • Authors
    • L. A. Gribov, Russian Academy of Sciences V. I. Vernadsky Institute of Geochemistry and Analytical Chemistry 19 Kosygin St. Moscow 119991 Russia

Source: Journal of Applied Spectroscopy | 30 Aug 2008 | 1:15 pm CEST

Spectroscopic characteristics of anionic centers in α-Al2O3 crystals bombarded by Cu+ and Ti+ ions

Abstract  We have studied the effect of bombardment by Cu+ and Ti+ ions with energy 30 keV on the optical absorption and luminescence of F centers in oxygen-deficient aluminum oxide. We have shown that in the induced optical absorption spectra there are six components of gaussian shape, which can be assigned to absorption bands of F+, F2, and F2+ centers. We have established that bombardment of the samples by ion beams has a weak effect on the thermoluminescence parameters in the 3.0 eV and 2.4 eV bands, while in the 3.8 eV luminescence band for F+ centers, the thermoluminescent response increases considerably.

  • Content Type Journal Article
  • DOI 10.1007/s10812-008-9068-8
  • Authors
    • V. S. Kortov, Urals State Technical University 19 ul. Mira Ekaterinburg 620002 Russia
    • I. A. Vainshtein, Urals State Technical University 19 ul. Mira Ekaterinburg 620002 Russia
    • A. S. Vokhmintsev, Urals State Technical University 19 ul. Mira Ekaterinburg 620002 Russia
    • N. V. Gavrilov, Russian Academy of Sciences Institute of Electrophysics, Urals Branch Ekaterinburg Russia

Source: Journal of Applied Spectroscopy | 30 Aug 2008 | 1:15 pm CEST

Dynamics of wavepacket tunneling in a periodic double-well potential

Abstract  Temporal evolution of wavepacket tunneling in a periodic double-well torsional potential has been studied numerically. Peculiarities of wavepacket tunneling dynamics under conditions of asymmetric distortion of the periodic potential function have been analyzed.

  • Content Type Journal Article
  • DOI 10.1007/s10812-008-9054-1
  • Authors
    • M. B. Shundalov, Belarusian State University 4 Nezavisimosti Ave. 220030 Minsk Belarus
    • O. G. Romanov, Belarusian State University 4 Nezavisimosti Ave. 220030 Minsk Belarus

Source: Journal of Applied Spectroscopy | 30 Aug 2008 | 1:15 pm CEST

Laser-induced modification of composite Cu-C nanosized particles synthesized using a pulsed electrical discharge in a liquid

Abstract  Composite copper-containing carbon nanosized structures were synthesized in the plasma of a pulsed electrical discharge, initiated between two graphite electrodes in an aqueous copper chloride solution. We studied the effect of laser radiation on the morphology of the nanoparticles formed, whose properties we studied by optical absorption spectroscopy and transmission electron microscopy. We discuss the mechanisms for nanoparticle formation in a discharge submerged in a liquid, and the possibilities for laser-induced modification of the nanoparticles. We estimated the temperature of the nanoparticles when exposed to laser radiation pulses.

  • Content Type Journal Article
  • DOI 10.1007/s10812-008-9059-9
  • Authors
    • V. S. Burakov, National Academy of Sciences of Belarus B. I. Stepanov Institute of Physics 68 prosp. Nezavisimosti Minsk 220072 Belarus
    • N. A. Savastenko, National Academy of Sciences of Belarus B. I. Stepanov Institute of Physics 68 prosp. Nezavisimosti Minsk 220072 Belarus
    • N. V. Tarasenko, National Academy of Sciences of Belarus B. I. Stepanov Institute of Physics 68 prosp. Nezavisimosti Minsk 220072 Belarus
    • E. A. Nevar, National Academy of Sciences of Belarus B. I. Stepanov Institute of Physics 68 prosp. Nezavisimosti Minsk 220072 Belarus

Source: Journal of Applied Spectroscopy | 30 Aug 2008 | 1:15 pm CEST

Luminescence excitation spectra and characteristics of luminescence centers with overlapping absorption bands

Abstract  For an ensemble of different types of luminescence centers with overlapping absorption bands, with no restrictions on the optical densities, we have obtained relations describing the luminescence excitation spectra for each type of center. We consider transformations of the relations in some limiting cases. We suggest a procedure for using the equations obtained to determine the characteristics of the luminescence centers. Some of these procedures have been experimentally implemented in study of intrinsic radiation color centers in lithium fluoride crystals. We have determined the ratios of the luminescence quantum yields for F2 and F3+ color centers, and we have observed that a major role is played by nonradiative transitions in deactivation of the first excited singlet state of F3+ centers.

  • Content Type Journal Article
  • DOI 10.1007/s10812-008-9058-x
  • Authors
    • A. P. Voitovich, National Academy of Sciences of Belarus B. I. Stepanov Institute of Physics 68 prosp. Nezavisimosti Minsk 220072 Belarus
    • V. S. Kalinov, National Academy of Sciences of Belarus B. I. Stepanov Institute of Physics 68 prosp. Nezavisimosti Minsk 220072 Belarus
    • A. P. Stupak, National Academy of Sciences of Belarus B. I. Stepanov Institute of Physics 68 prosp. Nezavisimosti Minsk 220072 Belarus

Source: Journal of Applied Spectroscopy | 30 Aug 2008 | 1:15 pm CEST

Luminescence of carbazolyl-containing polymers doped with iridium chelates

Abstract  White light emission is shown to be obtainable at room temperature through the mixing of poly-N-vinylcarbazole (PVC) host fluorescence with fac-tris(2-phenylpyridyl)Ir(III) [Ir(ppy)3] and bis[2-(2′-benzothienyl)pyridinato-N,C3′](acetylacetonate)iridium (III) [Btp2Ir(acac)] dopant phosphorescence whereas at very low temperature through the superposition of poly-N-epoxypropyl-3,6-dibromocarbazole (3,6-DBrPEPC) host and Btp2Ir(acac) dopant phosphorescence emissions. The balance between basic colors is adjusted by the variation of triplet-emitter dopant concentrations. Spin-allowed singlet-singlet energy transfer from the host to iridium chelate dopants by the Forster mechanism is the dominant process in PVC. Spin-forbidden triplet-singlet transfer by the Forster mechanism from the host to the dopant occurs at low temperatures in 3,6-DBrPEPC due to strong spin-orbit coupling induced by the heavy bromine atoms. Spin-allowed transfer from the same host’s triplet excited state to the iridium chelate occurs via electron exchange at high temperatures.

  • Content Type Journal Article
  • DOI 10.1007/s10812-008-9051-4
  • Authors
    • Yu. A. Skryshevskii, National Academy of Sciences of Ukraine Institute of Physics 46 Nauka Ave. Kiev 03028 Ukraine

Source: Journal of Applied Spectroscopy | 30 Aug 2008 | 1:15 pm CEST

Procedure for retrieval of atmospheric aerosol backscatter coefficient profiles from results of multi-wavelength lidar sounding

Abstract  A measurement procedure is proposed to retrieve the profiles of atmospheric aerosol backscatter coefficients (βa) from the results of multi-wavelength sounding of the atmosphere by a laser location system based on a Nd: YAG-laser. The procedure uses a regression dependence between spectral values of βa (background aerosol model) and involves the determination of coefficients which characterize the relative spectral behavior of aerosol extinction. The stability of the procedure to spatial variations of the above coefficients, a deviation of βa from the dependence used, and calibration and measurement errors is examined. This procedure is compared with the widely used Fernald method by means of a numeric experiment. This procedure is demonstrated to be effective for retrieving vertical profiles of β a in the troposphere, especially in the short-wavelength region.

  • Content Type Journal Article
  • DOI 10.1007/s10812-008-9055-0
  • Authors
    • M. M. Kugeiko, Belarusian State University 4 Nezavisimosti Ave. 220030 Minsk Belarus
    • S. A. Lysenko, Belarusian State University 4 Nezavisimosti Ave. 220030 Minsk Belarus

Source: Journal of Applied Spectroscopy | 30 Aug 2008 | 1:15 pm CEST

Generation of acoustically distributed feedback lasers based on gyrotropic crystals

Abstract  Oscillation conditions were determined for acoustically distributed feedback (ADFB) lasers based on gyrotropic uniaxial and cubic crystals. The lasing threshold was shown to be higher for the modes with clockwise polarization than for those with counterclockwise polarization. It is established that the regions of maximal amplification for clockwise (counterwise) waves of the gyrotropic crystal are displaced in the direction of decreased (increased) phase detuning, respectively, relative to amplification regions that correspond to the absence of crystal gyrotropy. The ADFB laser was shown to be capable of generating at the Bragg frequency.

  • Content Type Journal Article
  • DOI 10.1007/s10812-008-9052-3
  • Authors
    • T. V. Nikolaenko, I. P. Shamiakin Mozyr State Pedagogical University 28 Studencheskaya St. Mozyr 247760 Belarus

Source: Journal of Applied Spectroscopy | 30 Aug 2008 | 1:15 pm CEST

Absorptivity and fluorescence properties of 9,10-diiodoanthracene in solutions

Abstract  The molar extinction coefficient, oscillator strength, natural fluorescence lifetime, and fluorescence quantum yield have been determined for 9,10-diiodoanthracene in ethanol at 20°C. The temperature effect on the quantum yield was studied in the range 120–300 K. The fluorescence lifetime was measured at 77 K. During glassification of ethanol, the fluorescence intensity of 9,10-diiodoanthracene increases by more than 50 times due to the activation nature of the intersystem crossing from the S1(1B2u+) state. The activation energy and pre-exponential factor for the probability of the intersystem {ie319-01}-crossing are found. The long-wavelength shift of the absorption spectrum with increasing bulk polarizability of the solvent is interpreted as evidence of changes in the nonspecific interactions.

  • Content Type Journal Article
  • DOI 10.1007/s10812-008-9048-z
  • Authors
    • V. S. Pavlovich, National Academy of Sciences of Belarus B. I. Stepanov Institute of Physics 68 Nezavisimosti Ave. Minsk 220072 Belarus
    • A. P. Stupak, National Academy of Sciences of Belarus B. I. Stepanov Institute of Physics 68 Nezavisimosti Ave. Minsk 220072 Belarus
    • L. G. Pikulik, National Academy of Sciences of Belarus B. I. Stepanov Institute of Physics 68 Nezavisimosti Ave. Minsk 220072 Belarus
    • D. T. Kozhich, National Academy of Sciences of Belarus B. I. Stepanov Institute of Physics 68 Nezavisimosti Ave. Minsk 220072 Belarus
    • T. A. Pavich, National Academy of Sciences of Belarus B. I. Stepanov Institute of Physics 68 Nezavisimosti Ave. Minsk 220072 Belarus

Source: Journal of Applied Spectroscopy | 30 Aug 2008 | 1:15 pm CEST

Quantitative analysis of solid-phase mixtures by Raman spectroscopy

Abstract  We propose a method for using Raman spectroscopy to determine the phase compositions and concentrations in solid-phase equilibrium mixtures.

  • Content Type Journal Article
  • Category Brief Communications
  • DOI 10.1007/s10812-008-9066-x
  • Authors
    • B. G. Golovkin, Russian Academy of Sciences Institute of Solid State Chemistry, Urals Branch 91 ul. Pervomaiskaya Ekaterinburg 620041 Russia

Source: Journal of Applied Spectroscopy | 30 Aug 2008 | 1:15 pm CEST

Spectral signs of photochemical reactions when blood is exposed in vivo to therapeutic doses of ultraviolet radiation

Abstract  We have used the absorption spectra of whole blood, erythrocytes, and plasma to study photochemical reactions initiated by exposure of blood in vivo to UV radiation (UV irradiation) in the UV-visible and IR regions of the spectrum. We have established that when blood is exposed to therapeutic doses of UV radiation (0.5 J/cm2), the absorption of blood proteins decreases as monitored using the UV absorption and luminescence bands of the proteins; photochemical reactions are initiated in the protein and heme components of the hemoglobin. For the studied doses, the reversible reaction of photodissociation of hemoglobin complexes with oxygen is one of the most likely primary reactions initiated by UV irradiation of blood. We conclude that changes in the position and relative intensities of the IR absorption bands of the peptide groups (stretching and bending vibrations of NH, CN, and CO bonds) may be due to conformational transitions in the blood protein macromolecules, induced with a change in the intermolecular hydrogen bonds on absorption of the UV radiation by the blood. The changes in the absorption spectra of blood initiated by UV irradiation are compared with the results of laboratory blood analyses.

  • Content Type Journal Article
  • DOI 10.1007/s10812-008-9063-0
  • Authors
    • G. A. Zalesskaya, National Academy of Sciences of Belarus B. I. Stepanov Institute of Physics 68 prosp. Nezavisimosti Minsk 220072 Belarus
    • V. S. Ulashchik, National Academy of Sciences of Belarus Institute of Physiology Minsk Belarus
    • N. P. Mit’kovskaya, Belorussian State Medical University Minsk Belarus
    • A. V. Kuchinskii, National Academy of Sciences of Belarus B. I. Stepanov Institute of Physics 68 prosp. Nezavisimosti Minsk 220072 Belarus
    • O. V. Laskina, Belorussian State Medical University Minsk Belarus

Source: Journal of Applied Spectroscopy | 30 Aug 2008 | 1:15 pm CEST

Spectral and polarization properties of a composite material with filler of plant origin

Abstract  Based on a filler of plant origin, we have developed a new composite material and have studied its spectral and polarization properties. We suggest a direction for application of the synthesized material.

  • Content Type Journal Article
  • DOI 10.1007/s10812-008-9067-9
  • Authors
    • T. V. Borbot’ko, Belorussian State University of Information Science and Electronics 6 ul. P. Brovki Minsk 220013 Belarus
    • Yu. V. Belyaev, A. N. Sevchenko Scientific Research Institute of Applied Physics Problems Minsk Belarus

Source: Journal of Applied Spectroscopy | 30 Aug 2008 | 1:15 pm CEST

Correlation of color characteristics with Conradson carbon residue and molecular weight of complex hydrocarbon media

Abstract  We have determined and studied the color characteristics of multicomponent high-molecular weight hydrocarbon systems in the RGB colorimetric system. We have established linear relationships between the color characteristics and various physicochemical properties of the studied substances. The conclusions are supported by statistical treatment of the data.

  • Content Type Journal Article
  • DOI 10.1007/s10812-008-9064-z
  • Authors
    • M. Yu. Dolomatov, Ufa State Institute of Service 145 ul. Chernyshevskogo Ufa 450077 Russia
    • G. U. Yarmukhametova, Ufa State Institute of Service 145 ul. Chernyshevskogo Ufa 450077 Russia

Source: Journal of Applied Spectroscopy | 30 Aug 2008 | 1:15 pm CEST

NMR determination of the composition of balsams from scotch pine resin

Abstract  We have used 1H and 13C NMR spectroscopy to study the composition of pine resin balsams from Scotch pines grown in different regions of the Republic of Belarus. We have established that their chemical composition does not depend very much on the region where they are grown or the level of contamination of the forests by radioactive and industrial emissions. Prolonged storage of the balsams leads to a substantial change in their compositions, due to isomerization of the resin acids.

  • Content Type Journal Article
  • DOI 10.1007/s10812-008-9065-y
  • Authors
    • E. D. Skakovskii, National Academy of Sciences of Belarus Institute of Physical Organic Chemistry (State Scientific Institution) 13 ul. Surganova Minsk 220072 Belarus
    • L. Yu. Tychinskaya, National Academy of Sciences of Belarus Institute of Physical Organic Chemistry (State Scientific Institution) 13 ul. Surganova Minsk 220072 Belarus
    • O. A. Gaidukevich, National Academy of Sciences of Belarus Institute of Physical Organic Chemistry (State Scientific Institution) 13 ul. Surganova Minsk 220072 Belarus
    • N. G. Kozlov, National Academy of Sciences of Belarus Institute of Physical Organic Chemistry (State Scientific Institution) 13 ul. Surganova Minsk 220072 Belarus
    • A. Yu. Klyuev, National Academy of Sciences of Belarus Institute of the Chemistry of New Materials Minsk Belarus
    • S. A. Lamotkin, Belorussian State University of Technology Minsk Belarus
    • S. I. Shpak, Belorussian State University of Technology Minsk Belarus
    • S. V. Rykov, State University of Management Moscow Russia

Source: Journal of Applied Spectroscopy | 30 Aug 2008 | 1:15 pm CEST


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