Journal of the Spectroscopical Society of Japan
Online ISSN : 1884-6785
Print ISSN : 0038-7002
ISSN-L : 0038-7002
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Volume 21, Issue 1
Displaying 1-6 of 6 articles from this issue
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  • Spectroscopic Analysis of Air-borne Particulates
    Akiyoshi SUGIMAE, Toshio HASEGAWA
    1972 Volume 21 Issue 1 Pages 1-9
    Published: February 29, 1972
    Released on J-STAGE: June 28, 2010
    DOIhttps://doi.org/10.5111/bunkou.21.1
    JOURNAL FREE ACCESS
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  • Numerical Processing of Spectral Data
    Tamon INOUYE
    1972 Volume 21 Issue 1 Pages 10-15
    Published: February 29, 1972
    Released on J-STAGE: June 28, 2010
    DOIhttps://doi.org/10.5111/bunkou.21.10
    JOURNAL FREE ACCESS
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  • Studies on the Spectrochemical Analysis of Metal Samples by means of the Laser Microprobe (Part 1)
    Erosion of Pure Metals by the Normal Laser Radiation
    Ryohei ISHIDA, Masaaki KUBOTA
    1972 Volume 21 Issue 1 Pages 16-25
    Published: February 29, 1972
    Released on J-STAGE: June 28, 2010
    DOIhttps://doi.org/10.5111/bunkou.21.16
    JOURNAL FREE ACCESS
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    A fundamental study has been made of the erosion of samples that results when a normal laser beam is focussed onto the surface of various metals in order to establish acceptable analytical method using a laser microprobe.
    The JEOL laser microprobe model JLM-200 was employed for the experiment.
    Observations of the craters and the eroded materials show that the erosion phenomena of metals are classified into four types of tin, iron, aluminum and copper.Remarkable differences of crater sizes are observed among various kinds of metals.Volume of the crater is relative to the energy required to melt the sample except a few metals.Comparisons of the energies required to vaporize metals and the erosion amounts measured also suggest that the fraction of energy which is transferred from the laser beam to the sample and the resulting plume is dependent on the thermal property of the metal.
    Consequently, a possibility that the matrix effect will take place in the analytical procedure of alloy samples is discussed.
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  • A Simple Method of Semi-quantitative Spectrochemical Analysis using N.B.S.Tables of Spectral Line Intensities
    Jiro KASIMA, Hiroshi YAMAGUCHI
    1972 Volume 21 Issue 1 Pages 26-35
    Published: February 29, 1972
    Released on J-STAGE: June 28, 2010
    DOIhttps://doi.org/10.5111/bunkou.21.26
    JOURNAL FREE ACCESS
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    As simple method of semi-quantitative spectrochemical analysis which may require no standard sample, utilizing N.B.S.Tables of Spectral-Line Intensities was thought out and studied by universal source unit.
    Generally, the observed spectral intensity (I) is described as a function of the concentration (C) with the constant term (K) and (α), that is“I=KCα, ”then the values of (α) and (K) of several elements were investigated from the relationship of N.B.S.intensities and observed intensities.Consequently, the values of (α) were almost equal and of (K) were closely similar for the same sample under fixed experimental conditions.Then the following semi-quantitative method using only one standard sample was actually tested on some alloys.
    (A) For elements contained in a standard sample, only the values of (K) were measured and their working curves were drawn with a constant inclination (α).
    (B) For elements not contained in a standard sample, (K) of other elements were substituted into them.
    In the case of (A), average error was 30-50%and, in case of (B), close to accuracy of order was obtained.
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  • Thermal Atomization of Samples from a Wire Loop Followed by Excitation in Microwave Electrodeless Discharge for Emission Spectrometry
    Hiroshi KAWAGUCHI, Masayasu HASEGAWA, Atsushi MIZUIKE
    1972 Volume 21 Issue 1 Pages 36-42
    Published: February 29, 1972
    Released on J-STAGE: June 28, 2010
    DOIhttps://doi.org/10.5111/bunkou.21.36
    JOURNAL FREE ACCESS
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    The samle solution (2 μl) is placed on a tungsten loop filament (loop diam.of 1.8 mm, wire diam.of 0.2 mm), which is next slowly heated in a stream of agron (300 ml/min) by direct heating until the solvent is removed.By raising the filament temperature, the residue is evaporated and introduced into an electrodeless discharge (2450 MHz, 50 W), burning in a quartz capillary (1.6 mm i.d.) at atmospheric pressure.An 0.5-m Ebert mount spectrometer with an 1180 rulings/mm grating is used in conjunction with a micro-micro ammeter and a strip chart recorder.
    Among various materials and shapes of the atomizer tested, the above-mentioned loop is best suited.The optimum temperature is different for each element, ranging from 800° to 1200°C.The influence of coexisting elements and acidity on the emission intensity of cadmium is investigated, and the relative freedom from interferences is demonstrated.The detection limits expressed in ng are: 0.01 for Ag (nitrate), 0.02 for Cu (sulfate), and 4, 0.004, 0.2 and 0.01 for Ba, Cd, Pb and Zn (chlorides), respectively.The relative standard deviations are from 2 to 16 per cent.
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  • Applied Spectroscopy
    (1) Emission Spectrochemical Analysis
    Sadao SANO
    1972 Volume 21 Issue 1 Pages 43-58
    Published: February 29, 1972
    Released on J-STAGE: June 28, 2010
    DOIhttps://doi.org/10.5111/bunkou.21.43
    JOURNAL FREE ACCESS
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