Journal of the Spectroscopical Society of Japan
Online ISSN : 1884-6785
Print ISSN : 0038-7002
ISSN-L : 0038-7002
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Volume 23, Issue 1
Displaying 1-7 of 7 articles from this issue
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  • Infrared Chemiluminescence
    Soji TSUCHIYA, Hiroyuki HORIGUCHI
    1974 Volume 23 Issue 1 Pages 1-22
    Published: February 28, 1974
    Released on J-STAGE: June 28, 2010
    DOIhttps://doi.org/10.5111/bunkou.23.1
    JOURNAL FREE ACCESS
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  • Characteristic Fluorescence Spectra of Highly Concentrated Pyrene Solutions in n-Paraffins at 77 K
    Mikio SUMIZAWA
    1974 Volume 23 Issue 1 Pages 23-28
    Published: February 28, 1974
    Released on J-STAGE: June 28, 2010
    DOIhttps://doi.org/10.5111/bunkou.23.23
    JOURNAL FREE ACCESS
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    Effects of two different refreezing processes have been investigated on the fluorescence spectrum of refrozen pyrene solutions in n-heptane and n-hexane in a wide range of concentration. It has been found that the refreezing process gives significant changes in the fluorescence spectrum of the samples with pyrene concentration of above 4×10-3 M/M. One of the refreezing processes produces the excimer fluorescence band in addition to the quasiline series which is not so much influenced by the refreezing. In the fluorescence spectrum produced by the other refreezing process the short wavelength portion is a quasiline series shifted as a whole to blue as compared with the quasiline series produced by the former refreezing process, whereas the long wavelength portion consists of several bands in the region. between 4500 and 4900Å.
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  • On the Effect of Electrode Temperature on Spark Discharge
    III. Spectrographic Analysis of Cast Iron Using Heated Electrode
    Jiro KASHIMA, Fumio UMEMURA
    1974 Volume 23 Issue 1 Pages 29-36
    Published: February 28, 1974
    Released on J-STAGE: June 28, 2010
    DOIhttps://doi.org/10.5111/bunkou.23.29
    JOURNAL FREE ACCESS
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    A study has been made on the influences of electrode temperature on spectral line intensities and working curves in spetrographic analysis of cast iron. Both white cast iron and gray cast iron were used for the sample electrodes.
    The iron spectral line intensity increases markedly with rising temperature in a range from 300°C to 500°C, and it increases gradually in a range higher than 500°C, approaching a definite value.
    When the electrode temperature is lower than 300°C, the iron line intensity of gray iron is stronger than that of white iron. Difference between the intensities of gray and white irons decreases gradually with rising .temperature and becomes very small at above 500°C.
    Intensity ratios of alloying elements such as Si, Mn, Al, Ni, Cu, Cr and Ti to iron also depend upon the matrix of cast iron. Its dependence, however, decreases when the electrode is heated. To determine Si, Al, and Ni in cast iron without heating the sample electrode, it is necessary to prepare working curves for gray iron and white iron, respectively. If the heated electrode is used, only one working curve enables one to analyze samples of both cast irons.
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  • [title in Japanese]
    [in Japanese]
    1974 Volume 23 Issue 1 Pages 37-38
    Published: February 28, 1974
    Released on J-STAGE: June 28, 2010
    DOIhttps://doi.org/10.5111/bunkou.23.37
    JOURNAL FREE ACCESS
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  • [title in Japanese]
    [in Japanese]
    1974 Volume 23 Issue 1 Pages 38
    Published: February 28, 1974
    Released on J-STAGE: June 28, 2010
    DOIhttps://doi.org/10.5111/bunkou.23.38
    JOURNAL FREE ACCESS
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  • [title in Japanese]
    [in Japanese]
    1974 Volume 23 Issue 1 Pages 39-40
    Published: February 28, 1974
    Released on J-STAGE: June 28, 2010
    DOIhttps://doi.org/10.5111/bunkou.23.39
    JOURNAL FREE ACCESS
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  • Light Detection and Data Processing
    (1) Sepectrophotographic Photometry
    Makoto YASUDA, Tsutomu TAKAHASHI
    1974 Volume 23 Issue 1 Pages 41-57
    Published: February 28, 1974
    Released on J-STAGE: June 28, 2010
    DOIhttps://doi.org/10.5111/bunkou.23.41
    JOURNAL FREE ACCESS
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