Journal of the Spectroscopical Society of Japan
Online ISSN : 1884-6785
Print ISSN : 0038-7002
ISSN-L : 0038-7002
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Volume 12, Issue 2
Displaying 1-3 of 3 articles from this issue
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  • Laser and Spectroscopy
    Mitsuyoshi SHIMAZU
    1963 Volume 12 Issue 2 Pages 61-78
    Published: November 30, 1963
    Released on J-STAGE: June 28, 2010
    DOIhttps://doi.org/10.5111/bunkou.12.61
    JOURNAL FREE ACCESS
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  • Spectrochemical Analysis of Copper Alloys by Spark Excitation with a Spectrophotometer
    Jiro KASHIMA
    1963 Volume 12 Issue 2 Pages 79-83
    Published: November 30, 1963
    Released on J-STAGE: June 28, 2010
    DOIhttps://doi.org/10.5111/bunkou.12.79
    JOURNAL FREE ACCESS
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    A method of direct reading analysis by spark excitation has been developed with Hitachi photoelectric spectrophotometer EPU-2A provided with a small spectrophotometer for measuring the light absorption. Despite the small dispersion of the electrometer, the developed method is found applicable to routine spectrochemical analysis of nonferrous alloys, for their emission spectra are not complicated. Results of analysis on copper alloys of Zn, Sn, Si and Mn are in good agreement with those of chemical analysisf or the ranges of 0.5-5.0% Zn, 0.4-15.0% Sn, 0.2-2.0% Si and 0.4-3.0% Mn.
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  • Arc Jet Excitation Source
    Manabu YAMAMOTO
    1963 Volume 12 Issue 2 Pages 84-93
    Published: November 30, 1963
    Released on J-STAGE: June 28, 2010
    DOIhttps://doi.org/10.5111/bunkou.12.84
    JOURNAL FREE ACCESS
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    A high-temperature light source for use as a spectroscopic excitation source has been developed. Solution samples are injected into a high-velocity stream of plasma which is formed by an argonhelium arc burning between a nozzle-shaped anode of copper and a cathode of thoriated tungsten. Electrode erosion, which disturbs the discharge, is eliminated by introducing the sample in such a manner that it contacts neither with the cathode foot of the arc on the tip of the negative electrode, nor with the anode foot of the arc on the inner surface of the nozzle.The discharge is further stabilized by preventing the arc from wandering within the throat of the nozzle by means of an electromagnetic force.Flame temperature of 11, 500°K has been measured for an arc current of 300 amp.Spectral lines originating from upper energy-levels up to 13eV, such as those of hydrogen, carbon, phosphorus, oxygen, and zinc have been observed.
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