巻号一覧
9 巻 (1961)
- 19 号 p. 149-
- 18 号 p. 67-
- 17 号 p. 3-
9 巻, 18 号
選択された号の論文の10件中1～10を表示しています
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早川 晃雄1961 年 9 巻 18 号 p. 67-86
発行日: 1961/10/31
公開日: 2010/06/28
ジャーナル フリーPDF形式でダウンロード (2762K) -
岡野 純1961 年 9 巻 18 号 p. 87-95
発行日: 1961/10/31
公開日: 2010/06/28
ジャーナル フリーResolving power of the mass spectrometer (constructed for micro-analysis in Osaka University) was increased up to about700 and the mass spectra of residual gases at the pressure of 2. 5× 10-8 mmHg were observed in the mass range from 12 to 46. Numbers of doublets or multiplets were found in the mass spectra and each peak was assigned to an appropriate ionic specy considering its mass and peak height.
It was found that oxygenated hydrocarbons and chlorine or hydrochloric acid were existent. The peak shapes of CH4+, C+ and H+ were somewhat different from others, which may due to the excess of the initial energies. Owing to the increased resolving power, it became possible to separate rare gas peaks from hydrocarbon peaks under dynamic or static operation, which was useful for the micro-analysis of rare gases.抄録全体を表示PDF形式でダウンロード (12538K) -
静作動時におけるイオンポンプ,イオンゲージの振舞い後藤 正之1961 年 9 巻 18 号 p. 95-102
発行日: 1961/10/31
公開日: 2010/06/28
ジャーナル フリーThe results of the preliminary work on the ultra-high vacuum mass spectrometer were discribed in the previous paper. After that, several reforms have been made in order to improve the end vacuum and the sensitivity of the mass spectrometer. The pressure of the order of 10-9 mmHg was attained and the ion current of the order of 10-18 A could be measured. Concerning with pumping action of the ion pump and the ionization gauge, variations of the residual peak heights with time were investigated in the closed vacuum system. From the results of the analyses of residual gases at the end vacuum, N2, CO, Ar, CH4, CO2, H2O and hydrocarbons(C1-C4 groups)were observed.抄録全体を表示PDF形式でダウンロード (848K) -
Nozomu Morito, Hitoshi Tsuyama1961 年 9 巻 18 号 p. 102-104
発行日: 1961/10/31
公開日: 2010/06/28
ジャーナル フリーThis paper describes the calculation of the deformed peak shape in mass spectrum. Sometimes the top of the peak in mass spectrum is inclined and a swelling appears on the skirt of the peak. Assuming that a main ion beam accompanied with a weak beam enters into an ion collector, the deformed peak shape can be expected from calculation.抄録全体を表示PDF形式でダウンロード (257K) -
同位体存在比測定による定量分析法の検討小寺 熊三郎, 槇田 勉, 甲斐 潤二郎, 福田 昭二, 河野 博之1961 年 9 巻 18 号 p. 105-109
発行日: 1961/10/31
公開日: 2010/06/28
ジャーナル フリーThree different methods have been examined to express the densities of spectrograms recorded on an Ilford Q2plate in our Mattauch-Herzog type mass spectrograph. The exposures have been decided by the integrated ion currents measured by the monitor electrode, thus their fluctuations have been eliminated without any internal standard. As examples, the isotopic abundances of Cu and Zn have been measured with appropriate calibration curves . The precision and accuracy of the measurements have been briefly discussed.抄録全体を表示PDF形式でダウンロード (1934K) -
中川 喜策1961 年 9 巻 18 号 p. 110-119
発行日: 1961/10/31
公開日: 2010/06/28
ジャーナル フリーLots of ions were observed in the spectra of polyethylene heated in the ion source of a mass spectrometer for the temperature range of 150-330°C. With elevation of temperature, the rate of ionic yield displayed a stage of slower increase(Process I), followed by a steeper uprise(Process II). For two brands of commercial polyethylene, Marlex and Hostalen, it was found that the values of activation energy for the latter stage appeared to be 34.0kcal/mol for Marlex and 24. 7kcal/mol for Hostalen. On the other side, the values for Process I were found to be 6. 5± 1.2kcal/mol for both samples. According to the mass spectra and the values of activation energy, it was concluded that Process II is corresponding to the stage of thermal degradation, which is presumed to be caused by some of the weak-links in the polymer molecule, while Process I would be explained by the presence of a stage of evaporation of lighter components contained originally in polyethylene. Thus the possibility of analyzing the structure of high polymers is suggested by regarding these volatile components as a miniature model of polymers.抄録全体を表示PDF形式でダウンロード (2501K) -
門田 憲章, 石田 精一1961 年 9 巻 18 号 p. 119-122
発行日: 1961/10/31
公開日: 2010/06/28
ジャーナル フリーIt is well known that the rate of effusion of particles in gaseous or vapor phase appears inversely proportional to the mass of the particles under the condition where the effusive flow can be undertaken. The effusive behavior, therefore, may be utilised for the explanation of mass spectra attributing a peak of certain mass number to be originated from the particle of known molecular weight. The authors studied the effusive behavior of water vapor comparing with some standard gaseous and vapor phase samples such as Ar, CO2, C2H5OH, using a mass spectrometer specially arranged to be available for the present purpose, and found that water vapor statically evaporated should behave as it is consisted of the double molecule of H2O in the process of flow through the so-called “ gas leak ” hole. This conclusion is supported by the discrepancy between the mass spectrometrically measured ionization potential and the spectroscopic data.抄録全体を表示PDF形式でダウンロード (465K) -
高岡 宣雄1961 年 9 巻 18 号 p. 123-125
発行日: 1961/10/31
公開日: 2010/06/28
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杉浦 俊男1961 年 9 巻 18 号 p. 125-130
発行日: 1961/10/31
公開日: 2010/06/28
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1961 年 9 巻 18 号 p. 131-134
発行日: 1961/10/31
公開日: 2010/06/28
ジャーナル フリーPDF形式でダウンロード (558K)
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