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11. |
Direct Spectrographic Determination of In, La, Nb and Sr in Thorium Oxide |
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Analytical Letters,
Volume 12,
Issue 3,
1979,
Page 289-302
R. Venkatasubramanian,
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摘要:
A d.c. are emission spectrographic method is described for the determination of ppm levels of In, La, Nb and Sr in thorium oxide. The method permits determination of the above low and high volatile impurity elements in thoria using AgCl as carrier in an atmosphere of oxygen. The carrier-distillation technique reported makes possible the following range of estimations: In : 1–50 ppm; La, Nb : 10–500 ppm and Sr: 2–100 ppm. The method is simple and rapid and its precision ranges from 14% for In to 18% for Nb. Observations made on the choice of carrier and internal standard are presented.
ISSN:0003-2719
DOI:10.1080/00032717908082532
出版商:Taylor & Francis Group
年代:1979
数据来源: Taylor
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12. |
Field Desorption Mass Spectrometry of Complex Anions Containing Rhenium and Technetium |
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Analytical Letters,
Volume 12,
Issue 3,
1979,
Page 303-311
BaryW. Wilson,
C.E. Costello,
S.A. Carr,
K. Biemann,
Chris Orvig,
A. Davison,
A.G. Jones,
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PDF (247KB)
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摘要:
Field desorption mass spectra of Technetium and Rhenium anionic coordinate complexes have been obtained. lonization was principally by electron extraction from the anion, cation or neutral anion-cation pair, or by cation attachment to the intact molecule. The spectra were generally simple and allowed confirmation of known of proposed coordinate complex structures.
ISSN:0003-2719
DOI:10.1080/00032717908082533
出版商:Taylor & Francis Group
年代:1979
数据来源: Taylor
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13. |
Editorial board page for “Analytical Letters”, Volume 12, Number 3 |
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Analytical Letters,
Volume 12,
Issue 3,
1979,
Page -
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PDF (97KB)
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摘要:
This is a scanned image of the original Editorial Board page(s) for this issue.
ISSN:0003-2719
DOI:10.1080/00032717908082521
出版商:Taylor & Francis Group
年代:1979
数据来源: Taylor
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