Journal of the Spectroscopical Society of Japan
Online ISSN : 1884-6785
Print ISSN : 0038-7002
ISSN-L : 0038-7002
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Volume 18, Issue 3
Displaying 1-4 of 4 articles from this issue
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  • Atomic Fluorescence Flame Spectrometry
    YU YOKOYAMA
    1969 Volume 18 Issue 3 Pages 125-132
    Published: August 31, 1969
    Released on J-STAGE: June 28, 2010
    DOIhttps://doi.org/10.5111/bunkou.18.125
    JOURNAL FREE ACCESS
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  • Molecular Orientation Measurements by the Fluorescence Method
    Yasunori NISHIJIMA
    1969 Volume 18 Issue 3 Pages 133-140
    Published: August 31, 1969
    Released on J-STAGE: June 28, 2010
    DOIhttps://doi.org/10.5111/bunkou.18.133
    JOURNAL FREE ACCESS
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  • Hot Hollow Cathode Discharge for Metal Analysis
    Taku HAGIHARA, Mamoru HARADA, Kiyoyuki TANAKA
    1969 Volume 18 Issue 3 Pages 141-148
    Published: August 31, 1969
    Released on J-STAGE: June 28, 2010
    DOIhttps://doi.org/10.5111/bunkou.18.141
    JOURNAL FREE ACCESS
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    Spectrochemical analysis for gaseous elements in metal was studied experimentally by means of a graphite hollow cathode discharge.Dependence of the discharge characteristics on argon pressure and cathode geometry and also the effect of insersion of sample were studied.The study was carried out on the spectra of two wavelength regions photographed by a 3.4 m plane grating spectrograph.In the region from 7300Å to 8550Å, onlyargon and oxygen lines appeared and the back ground was very low.In the region from 2750Å to 5250Å, argon and nitrogen lines appeared with a number of lines of metals which would be owing to the cathode spattering.Analytical conditions for the deter-mination of oxygen content in steel were also studied.
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  • Excitation of Copper in a High-Frequency Torch Discharge
    Seiichi MURAYAMA, Hiromitsu MATSUNO
    1969 Volume 18 Issue 3 Pages 149-152
    Published: August 31, 1969
    Released on J-STAGE: June 28, 2010
    DOIhttps://doi.org/10.5111/bunkou.18.149
    JOURNAL FREE ACCESS
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    A 2449 MHz torch discharge was used at 300 to 500 W as an excitation source for spectrochemical analysis of copper.The spectra were measured photoelectrically.The sample was put on a graphite electrode.Nebulized pure water was supplied to the discharge with argon as the carrier gas.Feeding rates of argon gas and pure water were 5.3l/min and 0.22 g/min, respectively.The stability and the reproducibility of the intensity of the line CuIλ 3247.5Å were as good as 3 and 4%, respectively.The intensity of the line FeIλ 3719.9Å was so stable that the fluctuation in it was as low as 4%, while the intensity of the line PbI λ 4057.8Å decreased with time.The detection limits for iron and lead in copper were 1 ppm and less than 1 ppm, respectively.
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