巻号一覧
21 巻, 1 号
選択された号の論文の6件中1～6を表示しています
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杉前 昭好, 長谷川 利雄1972 年 21 巻 1 号 p. 1-9
発行日: 1972/02/29
公開日: 2010/06/28
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井上 多門1972 年 21 巻 1 号 p. 10-15
発行日: 1972/02/29
公開日: 2010/06/28
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ノーマルレーザー光照射による純金属の消耗石田 良平, 久保田 正明1972 年 21 巻 1 号 p. 16-25
発行日: 1972/02/29
公開日: 2010/06/28
ジャーナル フリー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.抄録全体を表示PDF形式でダウンロード (1833K) -
鹿島 次郎, 山口 博1972 年 21 巻 1 号 p. 26-35
発行日: 1972/02/29
公開日: 2010/06/28
ジャーナル フリー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.抄録全体を表示PDF形式でダウンロード (1175K) -
河口 広司, 長谷川 雅康, 水池 敦1972 年 21 巻 1 号 p. 36-42
発行日: 1972/02/29
公開日: 2010/06/28
ジャーナル フリー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.抄録全体を表示PDF形式でダウンロード (824K) -
第1講発光分光分析佐野 貞雄1972 年 21 巻 1 号 p. 43-58
発行日: 1972/02/29
公開日: 2010/06/28
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