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  • Analytical Chemistry and Spectroscopy  (5)
  • 1
    Electronic Resource
    Electronic Resource
    The estimated binary calibration curve method in the JIS x-ray fluorescence analysis of steels and standard samples necessary for the method (1983)
    New York, NY [u.a.] : Wiley-Blackwell
    X-Ray Spectrometry 12 (1983), S. 23-29 
    Details
    ISSN: 0049-8246
    Keywords: Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Physics
    Notes: In the Japanese Industrial Standard for the x-ray fluorescence analysis of steels, the ‘estimated binary calibration curve’ method has been adopted. In this method, the calibration curve for the binary system, consisting of an analyte and the principal constituent elements is estimated and derived by using multicomponent standard samples. The measured x-ray intensity is first converted into a tentative analytical value from this calibration curve, and then the analytical result is derived from this tentative value using the correction procedure. In this paper, some methods and standard samples of making the estimated binary calibration curve are compared and discussed, also, the characteristics of the JIS method are described.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/xrs.1300120107
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Depolarization ratio in preresonance Raman effect (1974)
    Chichester [u.a.] : Wiley-Blackwell
    Journal of Raman Spectroscopy 2 (1974), S. 313-315 
    Details
    ISSN: 0377-0486
    Keywords: Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: The depolarization ratios of the C=C stretching vibrational Raman lines of C2Cl4, C2HCl3, trans-C2H2Cl2 were measured using visible and UV lasers. The depolarization ratios increased evidently from visible to UV excitation, and were discussed in relation to the ratio of the scattering tensor components.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jrs.1250020309
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Raman intensities of charge transfer complexes of benzene and halogen molecules (1978)
    Chichester [u.a.] : Wiley-Blackwell
    Journal of Raman Spectroscopy 7 (1978), S. 35-40 
    Details
    ISSN: 0377-0486
    Keywords: Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: The Raman spectra of solid complexes formed between halogens as electron donors and benzene and methylated benzenes as electron acceptors were measured at 77 K. Great increase in intensity was observed for the Raman lines ν10(e1g), ν16(e2u) and ν17(e2u) of benzene on complex formation. The great intensity enhancement of these out-of-plane bending modes is reasonably explained as the result of mixing of the 1A2u (σπ*) state of benzene and the charge transfer state. The observed spectra are consistent with the crystal structure of factor group C3ν, having one halogen molecule and one benzene molecule in a unit cell, which was proposed by Person et al. from the infrared spectra. It was found that the Raman spectra of the complexes provide a good test for the Raman intensity mechanism proposed for benzene and also give important information about electronic excited states which are not identifiable by other means.
    Additional Material: 7 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jrs.1250070113
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Absolute intensity ratios of Raman lines of benzene and ethylene derivatives with 5145 Å and 3371 Å excitation (1973)
    Chichester [u.a.] : Wiley-Blackwell
    Journal of Raman Spectroscopy 1 (1973), S. 341-346 
    Details
    ISSN: 0377-0486
    Keywords: Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: Absolute Raman intensities of benzene and ethylene derivatives were measured in the vapour phase with 5145 Å and 3371 Å excitation. Intensity increase of benzene 992 cm-1 band, which has been frequently used as an intensity standard, was found to be much smaller than expected. The observed intensity increases of ethylene derivatives nicely agree with the theory by assuming the contributing virtual states are the lowest allowed 1π, π* state.
    Additional Material: 2 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jrs.1250010404
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    Paper (German National Licenses)
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  • 5
    Electronic Resource
    Electronic Resource
    Absolute Raman intensities of liquids (1977)
    Chichester [u.a.] : Wiley-Blackwell
    Journal of Raman Spectroscopy 6 (1977), S. 38-41 
    Details
    ISSN: 0377-0486
    Keywords: Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: The absolute intensities of the 802 cm-1 Raman line of liquid cyclohexane at 514.5 and 337.1 nm excitations were determined by applying the local field correction theory to corresponding absolute intensities of cyclohexane vapour. By using this Raman line as an external intensity standard, the absolute Raman intensities of the 992 cm-1 line of benzene and the 666 and 762 cm-1 lines of chloroform were measured in the liquid phase. The gaseous absolute intensities were also measured for some molecules including benzene and chloroform and comparisons between the gas and liquid phase Raman intensities were made.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jrs.1250060109
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    Paper (German National Licenses)
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