Výsledky vyhledávání - "W. R. Summers"

Application of particle desorption mass spectrometry to the characterization of minerals

Autor: Emile A. Schweikert, W. R. Summers

Publikováno v: Analytical Chemistry. 58:2126-2129

Four mineral specimens were analyzed by particle desorption mass spectrometry using californium-252 as the primary ion source. Pollucite, amblygonite, microcline, and lepidolite, chosen for their high alkali metal content, were characterized with no

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8d71f7454edd1b5f681cb2f1ed485086
https://doi.org/10.1021/ac00124a005

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Surface characterization of a National Bureau of Standards glass reference material by californium-252 particle desorption mass spectrometry

Autor: M. U. D. Beug-Deeb, W. R. Summers, Emile A. Schweikert

Publikováno v: Analytical Chemistry. 60:1944-1947

National Bureau of Standards glass Standard Reference Materials have been characterized by particle desorption mass spectrometry (PDMS). Surface cleaning procedures, such as etching with HF or kiloelectronvolt ion sputtering, allow the detection of l

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c90022a583552bf77eac070be1850dd8
https://doi.org/10.1021/ac00169a021

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Chemistry of transition metals. III. Reactions of some alkyl dichlorides with titanium

Autor: J. F. Harrod, W. R. Summers

Publikováno v: Oxidation of Metals. 6:117-121

1,2- and 1,3-Dichloropropane react with clean titanium at ambient temperature to yield propylene, and a mixture of propylene (10%) and cyclopropane (90%), respectively. The surface is poisoned by adsorbed halide against further reaction at ambient te

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1fef579f9818ff7ce08614ac628e30be
https://doi.org/10.1007/bf00614659

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Chemistry of the Transition Metals. II. Reaction of Branched Alkyl Chlorides with Titanium

Autor: J. F. Harrod, W. R. Summers

Publikováno v: Canadian Journal of Chemistry. 50:2167-2174

Except for t-butyl chloride, the 1- and 2-methyl substituted ethyl chlorides reacted at ambient temperatures with clean titanium surfaces to produce mixtures of the corresponding alkanes and alkenes; t-butyl chloride gave only isobutene. At elevated

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::90ddf8e51c195be02c4ca9891f900e02
https://doi.org/10.1139/v72-350

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Thermodynamic Interaction in Poly(Dimethylsiloxane)—Hydrocarbon Systems from Gas—Liquid Chromatography

Autor: W. R. Summers, Y. B. Tewari, H. P. Schreiber

Publikováno v: Rubber Chemistry and Technology. 45:1655-1664

Poly(dimethyl siloxane) has been used as the stationary phase in gas—liquid chromatography. Retention volumes have been used to calculate the thermodynamic interaction parameters for a series of linear and branched alkanes and aromatic hydrocarbons

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::88ea954558972f14040251e0a4ef24d8
https://doi.org/10.5254/1.3544769

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Thermodynamic Interaction in Polydimethylsiloxane-Hydrocarbon Systems from Gas-Liquid Chromatography

Autor: H. P. Schreiber, Y. B. Tewari, W. R. Summers

Publikováno v: Macromolecules. 5:12-16

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f250aae521e42f1e5ae2a809d0992bde
https://doi.org/10.1021/ma60025a003

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Chemistry of transition metals. I. Reactions of n-alkyl halides with titanium

Autor: W. R. Summers, J. F. Harrod

Publikováno v: Journal of the American Chemical Society. 93:5051-5056

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::77e2a20813b5694e953bdc3d07e025f5
https://doi.org/10.1021/ja00749a015

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Compact time‐of‐flight mass spectrometer using particle‐induced desorption

Autor: W. R. Summers, Emile A. Schweikert

Publikováno v: Review of Scientific Instruments. 57:692-694

This paper describes the design and operation of a time‐of‐flight mass spectrometer that uses fast, heavy ions from the spontaneous fission of Cf‐252 to desorb species from the surfaces of solids. The technique provides for a simultaneous, mult

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::cde8181ff386c2cd36948f090ac8f297
https://doi.org/10.1063/1.1138892

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ChemInform Abstract: CHEMIE VON UEBERGANGSMETALLEN 1. MITT. RK. VON N-ALKYLHALOGENIDEN MIT TITAN

Autor: J. F. Harrod, W. R. Summers

Publikováno v: Chemischer Informationsdienst. Organische Chemie. 2

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ca1568adc8aee1d4ff5d2d4670d6e68d
https://doi.org/10.1002/chin.197151192

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Polarizations of Pcl Micropulsations propagated through Ionospheric Ducts

Autor: B. J. Fraser, W. R. Summers

Publikováno v: Nature Physical Science. 235:170-171

OBSERVATIONS have been made on Pcl geomagnetic micropulsation polarization characteristics at four low latitude stations in Australia and New Zealand. These are situated at Newcastle, New South Wales (geomagnetic coordinates 42° S, 226° E), Launces

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4ef8265d3df6d97648987cadeddd1f2d
https://doi.org/10.1038/physci235170a0

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