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Nonpneumonic, short-incubation-period Legionellosis (Pontiac fever) in men who cleaned a steam turbine condenser (1979)

D. W. Fraser ; D. C. Deubner ; D. L. Hill ; [weitere]

American Association for the Advancement of Science (AAAS)

In: Science. 205(4407): 690-1.

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Publikationsdatum: 1979-08-17

Beschreibung: Pontiac fever affected ten men who had cleaned a steam turbine condenser with compressed air. Previous epidemics of Pontiac fever and Legionnaires' disease--both caused by Legionella Pneumophila (proposed sp. nov.)--involved "airborne spread" from air-conditioning cooling towers or evaporative condensers. Aerosols of contaminated water in heat-rejection systems appear to be important sources of epidemic legionellosis.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Fraser, D W -- Deubner, D C -- Hill, D L -- Gilliam, D K -- New York, N.Y. -- Science. 1979 Aug 17;205(4407):690-1.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/462175" target="_blank"〉PubMed〈/a〉

Schlagwort(e): Adolescent ; Air Microbiology ; Humans ; Legionnaires' Disease/*etiology/microbiology/transmission ; Male ; Occupational Medicine ; Time Factors

Print ISSN: 0036-8075

Digitale ISSN: 1095-9203

Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik

Publiziert von American Association for the Advancement of Science (AAAS)

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Stationary phases for gas chromatography; chemical stability of polysiloxanes (1979)

Venema, A. ; Ven, L. G. J. v. d. ; Steege, H. v. d.

Weinheim : Wiley-Blackwell

Journal of High Resolution Chromatography 2 (1979), S. 405-410

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ISSN: 0935-6304

Schlagwort(e): Gas chromatography ; Capillary, glass ; Stationary phases of polysiloxane-type degrade in acidic solution ; Several salt traces affect stability at high temperature NaCl on Duran-5O: no effect at 260°C ; Chemistry ; Analytical Chemistry and Spectroscopy

Quelle: Wiley InterScience Backfile Collection 1832-2000

Thema: Chemie und Pharmazie

Notizen: A number of polysiloxanes have been shown to be sensitive to acids when dissolved in chloroform.At 26O°C polysiloxanes were found to degrade under the influence of several compounds used or produced during the preparation of glass capillary columns.

Zusätzliches Material: 6 Ill.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1002/jhrc.1240020707

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Degradation of diluted solutions of silicone stationary phases during storage (1979)

Venema, A. ; Ven, L. G. J. v. d. ; Steege, H. v. d.

Weinheim : Wiley-Blackwell

Journal of High Resolution Chromatography 2 (1979), S. 69-70

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ISSN: 0935-6304

Schlagwort(e): Gas Chromatography ; Stationary phases, chemical stability in solutions ; SE 30, SE 54 in chloroform or toluene show rapid depolymerization (HCL-, Tetramethylammoniu hydroxide-traces responsible) ; Solutions with decreased molecular weight of silicon phase give decreased film thickness (Hg plug technique) and increased tailing in glass capillary impregnation ; Chemistry ; Analytical Chemistry and Spectroscopy

Quelle: Wiley InterScience Backfile Collection 1832-2000

Thema: Chemie und Pharmazie

Zusätzliches Material: 2 Ill.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1002/jhrc.1240020204

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Sample size in gas chromatography (1978)

Choubey, U. D. ; Mitra, G. D.

Weinheim : Wiley-Blackwell

Journal of High Resolution Chromatography 1 (1978), S. 306-307

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ISSN: 0935-6304

Schlagwort(e): Gas Chromatography ; calculation of sample size ; simplest formula ; any type of GC column used ; Chemistry ; Analytical Chemistry and Spectroscopy

Quelle: Wiley InterScience Backfile Collection 1832-2000

Thema: Chemie und Pharmazie

Zusätzliches Material: 1 Tab.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1002/jhrc.1240010608

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The identification of 6-methoxy 8-aminoquionoline as a metabolite of primaquine in man (1975)

Baty, J. D. ; Evans, D. A. Price ; Robinson, P. A.

Chichester : Wiley-Blackwell

Biological Mass Spectrometry 2 (1975), S. 304-306

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ISSN: 1052-9306

Schlagwort(e): Chemistry ; Analytical Chemistry and Spectroscopy

Quelle: Wiley InterScience Backfile Collection 1832-2000

Thema: Chemie und Pharmazie

Notizen: The identification of 6-methoxy 8-aminoquinoline as a metabolite of Primaquine, an important antimalarial drug, is described. The metabolite is present in urine, plasma and erythrocytes following drug ingestion. It was identified by mass fragmentography of its 1H and 2H acetate and the acetate produced from authentic material. No evidence of further metabolites was obtained.

Zusätzliches Material: 3 Ill.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1002/bms.1200020605

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In vivo metabolism of cannabinol by the mouse and rat and a comparison with the metabolism of Δ1-tetrahydrocannabinol and cannabidiolAbbreviations: THC = tetrahydrocannabinol; CBD = cannabidiol; CBN = cannabinol. (1977)

Harvey, D. J. ; Martin, B. R. ; Paton, W. D. M.

Chichester : Wiley-Blackwell

Biological Mass Spectrometry 4 (1977), S. 364-370

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ISSN: 1052-9306

Schlagwort(e): Chemistry ; Analytical Chemistry and Spectroscopy

Quelle: Wiley InterScience Backfile Collection 1832-2000

Thema: Chemie und Pharmazie

Notizen: The in vivo liver metabolism of cannabinol has been studied in the mouse and rat by combined gas chromatography and mass spectrometry. Cannabinol glucuronide was the major metabolite of cannabinol in the mouse and was accompanied by relatively large amounts of 7-hydroxycannabinol, cannabinol-7-oic acid and their corresponding glucuronide conjugates. Lower concentrations of glucuronides were found in the rat. Two series of disubstituted metabolites were found containing either a 7-hydroxyl or a 7-carboxylic acid group and a second hydroxyl group in the 1″-4″ positions of the sidechain. These were of low concentration in the mouse but higher in the rat; 1″-hydroxy metabolites were particularly abundant in the latter species. Also found in the rat livers were small amounts of sidechain monohydroxy metabolites and larger quantities of 4″,5″-bisnorcannabinol-3″-oic acid; these were absent in the mouse. The metabolites were identified using the trimethylsilyl (TMS),[2H9]TMS and methyl ester-TMS derivatives, and by reduction of acid metabolites with lithium aluminium deuteride to the corresponding alcohols.

Zusätzliches Material: 7 Ill.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1002/bms.1200040608

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The measurement of acetanilide in plasma by spectrophotometric and selected ion monitoring methods (1977)

Baty, J. D. ; Playfer, J. ; Evans, D. A. Price ; [weitere]

Chichester : Wiley-Blackwell

Biological Mass Spectrometry 4 (1977), S. 255-257

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ISSN: 1052-9306

Schlagwort(e): Chemistry ; Analytical Chemistry and Spectroscopy

Quelle: Wiley InterScience Backfile Collection 1832-2000

Thema: Chemie und Pharmazie

Notizen: Plasma samples from volunteers who had received an oral dose of acetanilide have been analysed by gas chromatography mass spectrometry and ultraviolet absorption techniques. The gas chromatography mass spectrometry method involved extraction of the plasma and analysis of the acetanilide using selected ion monitoring with a deuterated internal standard. In the ultraviolet method the plasma was hydrolysed with acid to convert the acetanilide to aniline, and this compound was diazotized and coupled with N-1-naphthylethylene-diamine. The absorbance of the resulting complex was read at 550 nm. Acetanilide levels in plasma determined by the selected ion monitoring method were significantly lower than those measured by spectrophotometry. Pharmacokinetic data calculated from the results obtained using these two assays are very different and illustrate the need for an accurate and specific method of analysis. The major metabolites of acetanilide are shown not to interfere with these assays and the results suggest the possible presence of a new metabolite of acetanilide.

Zusätzliches Material: 2 Ill.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1002/bms.1200040412

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Enhanced resolution for X-ray spectrometry using a commercial spectrometer (1978)

Haycock, D. E. ; Urch, D. S.

New York, NY [u.a.] : Wiley-Blackwell

X-Ray Spectrometry 7 (1978), S. 206-211

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ISSN: 0049-8246

Schlagwort(e): Chemistry ; Analytical Chemistry and Spectroscopy

Quelle: Wiley InterScience Backfile Collection 1832-2000

Thema: Physik

Notizen: Mathermatical techniques (Fourier transform and iterative procedures) are described for unfolding spectrometer broadening from observed X-ray emission peaks. This enables enhanced resolution to be obtained. Broadening introduced by soller collimators and by crystal imperfections are considered in detail. Low energy peak ‘tailing’ due to beam divergence in the plane of the soller slits is also discussed.

Zusätzliches Material: 12 Ill.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1002/xrs.1300070407

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The atomic number dependence of the X-ray continuum intensity and the practical calculation of background in energy dispersive electron microprobe analysis (1975)

Smith, D. G. W. ; Gold, C. M. ; Tomlinson, D. A.

New York, NY [u.a.] : Wiley-Blackwell

X-Ray Spectrometry 4 (1975), S. 149-156

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ISSN: 0049-8246

Schlagwort(e): Chemistry ; Analytical Chemistry and Spectroscopy

Quelle: Wiley InterScience Backfile Collection 1832-2000

Thema: Physik

Notizen: Computer fitting techniques have been used to derive a new expression for the relationship between X-ray continuum intensity and atomic number for a range of electron acelerating potentials up to 25 kV, continuum energies up to 10 keV and average atomic numbers up to thirty. A practical approach to background corrections in energy dispersive electron microprobe analysis, which utilizes this expression, is outlined. The procedure should lead to significant improvements in both accuracy and detection limits in this method of X-ray analysis.

Zusätzliches Material: 6 Ill.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1002/xrs.1300040311

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Nuclear magnetic resonance and the conformation of some derivatives of Michler's ketone (1975)

Bartle, K. D. ; Hallas, G. ; Hepworth, J. D.

Chichester : Wiley-Blackwell

Organic Magnetic Resonance 7 (1975), S. 154-159

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ISSN: 0030-4921

Schlagwort(e): Chemistry ; Analytical Chemistry and Spectroscopy

Quelle: Wiley InterScience Backfile Collection 1832-2000

Thema: Chemie und Pharmazie

Notizen: 1H NMR spectra are reported for Michler's ketone and twenty of its derivatives, along with 13C chemical shifts for five of the compounds. 1H chemical shifts show only small changes with increasing substitution at the sterically hindered 2-position. Estimates of the dihedral angle between the benzene ring and C—CO—C planes have been obtained from the chemical shifts of C=O and 4-C for ketones 1, 3, 5, 15 and 16. These angles are both internally consistent and very similar to dihedral angles determined by other methods for corresponding compounds in the benzophenone series.

Zusätzliches Material: 1 Ill.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1002/mrc.1270070403

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