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TRANSPORT OF MATERIAL IN SOURCES FOR SPECTROSCOPIC ANALYSIS |
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Canadian Journal of Research,
Volume 16a,
Issue 3,
1938,
Page 61-74
G. O. Langstroth,
D. R. McRae,
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摘要:
A study of the transport of material in the condensed d-c. spark discharge has been made, with the object of placing quantitative spectroscopic methods of analysis on a less empirical basis and thus permitting, (a) the recognition of certain conditions of source operation which lead to unreliable determinations, and (b) the determination of some of the criteria to be fulfilled for maximum precision in analytic measurements.Variations in the transport phenomena, as indicated by variations in the relative distributions of emitting atoms of various elements along the discharge axis on the addition of certain substances to a sample, appear to be closely connected with the ionization potentials and masses of the elements, and with the ionization potentials of other particles present in the discharge. The data indicate the necessity for the use of a spectroscopic buffer, and provide certain criteria for the choice of the buffer and of the internal standard element.The exact nature of the mechanism of transport is uncertain, but various considerations indicate that neither the motion of ions under the influence of the field nor diffusion in the ordinary sense is sufficient to account for observed features.
ISSN:1923-4287
DOI:10.1139/cjr38a-005
出版商:NRC Research Press
年代:1938
数据来源: NRC
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2. |
NOTE ON THE ANALYSIS OF THE γ-RAYS OF RADIUM E |
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Canadian Journal of Research,
Volume 16a,
Issue 3,
1938,
Page 75-76
J. A. Gray,
J. F. Hinds,
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摘要:
not available
ISSN:1923-4287
DOI:10.1139/cjr38a-006
出版商:NRC Research Press
年代:1938
数据来源: NRC
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3. |
NOTE ON A VACUUM TIGHT SEAL FOR ELECTRODES WITH HIGH INSULATION |
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Canadian Journal of Research,
Volume 16a,
Issue 3,
1938,
Page 76-76
R. D. Bradfield,
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PDF (70KB)
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摘要:
not available
ISSN:1923-4287
DOI:10.1139/cjr38a-007
出版商:NRC Research Press
年代:1938
数据来源: NRC
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