Journal of the Spectroscopical Society of Japan
Online ISSN : 1884-6785
Print ISSN : 0038-7002
ISSN-L : 0038-7002
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Volume 13, Issue 2
Displaying 1-3 of 3 articles from this issue
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  • On the Infrared Attenuated Total Reflection Method
    Shigeyuki TANAKA
    1964 Volume 13 Issue 2 Pages 43-52
    Published: December 31, 1964
    Released on J-STAGE: June 28, 2010
    DOIhttps://doi.org/10.5111/bunkou.13.43
    JOURNAL FREE ACCESS
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  • Spectrochemical Analysis of Boiler or Condenser Tube Scale by Globule Arc Excitation Method
    Masaki YABUSHITA, Shoushiro SAKAI
    1964 Volume 13 Issue 2 Pages 53-57
    Published: December 31, 1964
    Released on J-STAGE: June 28, 2010
    DOIhttps://doi.org/10.5111/bunkou.13.53
    JOURNAL FREE ACCESS
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    The globule arc excitation method of spectrochemical analysis is studied for the determination of elements in boiler or condenser tube scale.
    The globules made of sample scale admixed with cupric oxide in ratio 1: 1, are excited by d.c. 280V 0.8 A.
    The results are summarized as follows:
    1.By the proposed method, major elements (Fe, Mg) and minor elements (Ni, Co, Cr, Zn and Mn) in the scale can be determined in one excitation with acceptable precision.
    2. The volatilization curve of each element in the sample globule is nearly constant during 30 to 105 sec.of arcing.
    3. Since the globule arc excitation suppresses the volatilization of silica, alumina and quick lime, these elements can not be analyzed.
    4. In this method, arc temperature estimated from the intensity ratio of two spectral lines is calculated to be 3500°K which is lower than that of the normal arc of sample alone.
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  • Electrode Erosion in Spark Discharge
    Tsutomu TAKAHASHI, Kouichi YOSHINO
    1964 Volume 13 Issue 2 Pages 58-64
    Published: December 31, 1964
    Released on J-STAGE: February 23, 2011
    DOIhttps://doi.org/10.5111/bunkou.13.58
    JOURNAL FREE ACCESS
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    For the excitation of spectrum of copper in argon atmosphere by spark discharge in a wide range of low voltage, a spectrochemical source unit is used, with which the relation of electrode erosion to other factors involved in the analysis is examined.The electrode erosion is obtained by the difference in weight of the electrode before and after the discharge. Under various discharge conditions, . the cathode electrode erosion is found linearly related to the integrated discharge current ∫idt. It affects also the spectral intensity but not the electron temperature which was measured by Ornstein's method. Except for the case of oscillating discharge, the anode electrode erosion was not observed.
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