巻号一覧
14 巻, 6 号
選択された号の論文の5件中1～5を表示しています
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小野 準一1966 年 14 巻 6 号 p. 215-218
発行日: 1966/05/31
公開日: 2011/02/23
ジャーナル フリーSpectrochemical analysis of carbon in steel with 1930.9 Å line is made with air spectrometer (Quantolet) instead of vacuum spectrometer.Quantolet is a direct reading spectrometer with a grating of 2400 grooves per mm and 75 cm radius of curvature.In order to avoid the influence of CO2 in air, an argon spark stand is used. As the absorption of O2 at C 1930.9 Å is much stronger than at two Fe III lines on both sides of carbon line, Fe III spectra that pass through the carbon exit slit are stronger than in the case of vacuum optical path. Therefore the signal to background ratio in air path is very low. But a proper adjustment of vertical position of spark gap and narrowing of the exit slit give nearly the same result as obtained with vacuum spectrometer.Working curves of the NBS standard samples and reproducibility of data assure the usability of air spectrometer for carbon analysis.抄録全体を表示PDF形式でダウンロード (1603K) -
河島 磯志1966 年 14 巻 6 号 p. 219-229
発行日: 1966/05/31
公開日: 2011/02/23
ジャーナル フリーIn a previous work (Part II), the concentrations of ten residual elements (Al, Cu, Co, Cr, Ca, Mg, Mn, Mo, Ni and V) in supposedly pure iron were determined to 1ppm by the powder-d-carc spectrographic method.In this paper the determination of hafnium concentration by the same method is described.Hf II 2861.696Å is found the best out of one hundred and thirty one spectrum lines between 2, 400Å and 3, 500Å, with which the error of determination is less than 10% when the concentration is from 0.001 to 0.5%.The best hafnium line for the ingot sample technique is Hf II 2861.696 A or Hf II 3072. 877 A when excited by high voltage a-carc and Hf II 2861. 696Å or Hf 2820.224Å when excited by spark.抄録全体を表示PDF形式でダウンロード (1253K) -
半導体材料の発光分光分析に関する研究: 第1報大塚 繁, 松岡 俊介1966 年 14 巻 6 号 p. 230-237
発行日: 1966/05/31
公開日: 2010/06/28
ジャーナル フリーThe relations of quality of graphite rod electrode, amount of sample solution, electrode temperature at quenching and drying condition for quenched electrode to adsorbed amount and distribution of elements in the electrode in quenched electrode spectrographic analysis are investigated by tracer method with 64Cu and 72Ga as tracers, and the effects of those above-mentioned factors on accuracy of analysis and detectability are studied with the following results.(1) Adsorbed amount and distribution of concerned elements in graphite rod depend on the quality of the graphite.(2) Adsorbed amount of concerned elements in graphite rode reaches a maximum value, which is regarded as an equilibrium state, when red-heated graphite rod is immersed in a sample solution without delay.(3) The volume of sample solution need not be more than to immerse the graphite rod.(4) Adsorbed amount of concerned elements in graphite rod is represented by an empirical equation which is analogous to Freundlich's isotherm and has no connection with constituents other than the concerned elements.(5) From the detectability point of view, 110°C for 30 minutes is adequate for drying of quenched graphite rod.抄録全体を表示PDF形式でダウンロード (3695K) -
半導体材料の発光分光分析に関する研究: 第2報大塚 繁, 松岡 俊介, 上村 登1966 年 14 巻 6 号 p. 238-252
発行日: 1966/05/31
公開日: 2010/06/28
ジャーナル フリーEvaporability of adsorbed elements in a quenched electrode under various excitation conditions is examined and its effect on the precision of analysis of the elements is studied.To investigate the evaporation process of adsorbed elements during the discharge, the behavior of evaporated elements is ascertained by measuring their spectral intensity and that of elements remained in the electrode is investigated by autoradiography with 64Cu or 72Ga as the tracer.The evaporability of adsorbed elements is found to depend not only on the temperature of electrode at the time of discharge but also on the kind and concentration of a large quantity of the constituents, and the factor that governs the reproducibility and detectability in this quenched electrode method is ascertained.抄録全体を表示PDF形式でダウンロード (2370K) -
安藤 剛三, 森 一夫, 岡崎 清比古, 尾中 龍猛, 竹之内 孝彦1966 年 14 巻 6 号 p. 253-257
発行日: 1966/05/31
公開日: 2010/06/28
ジャーナル フリーPDF形式でダウンロード (1342K)
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