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  • 1
    Digitale Medien
    Digitale Medien
    Determining the stability constant of copper(I) halide complexes from kinetic measurements (1988)
    s.l. : American Chemical Society
    Inorganic chemistry 27 (1988), S. 3256-3259 
    Details
    ISSN: 1520-510X
    Quelle: ACS Legacy Archives
    Thema: Chemie und Pharmazie
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1021/ic00291a049
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  • 2
    Digitale Medien
    Digitale Medien
    Reactivity of ferrate(VI) and ferrate(V) with amino acids (1991)
    s.l. : American Chemical Society
    Inorganic chemistry 30 (1991), S. 4306-4310 
    Details
    ISSN: 1520-510X
    Quelle: ACS Legacy Archives
    Thema: Chemie und Pharmazie
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1021/ic00023a005
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  • 3
    Digitale Medien
    Digitale Medien
    Oxidation of copper(I) in seawater (1988)
    s.l. : American Chemical Society
    Environmental science & technology 22 (1988), S. 768-771 
    Details
    ISSN: 1520-5851
    Quelle: ACS Legacy Archives
    Thema: Chemie und Pharmazie , Energietechnik
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1021/es00172a004
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  • 4
    Digitale Medien
    Digitale Medien
    The oxidation of Cu(I) in electrolyte solutions (1988)
    Springer
    Journal of solution chemistry 17 (1988), S. 581-599 
    Details
    ISSN: 1572-8927
    Schlagwort(e): Copper ; oxidation ; NaCl solutions ; ionic strength ; speciation
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Chemie und Pharmazie
    Notizen: Abstract The rates of oxidation of Cu(I) in air saturated solutions was measured as a function of pH, temperature (5–45°C), and ionic strength (0.5 to 6m) in NaCl and NaCl−NaClO4 solutions. In pure NaCl solutions, the effect of pH is independent of ionic strength and temperature. The overall rate constant is given by logk=12.32+0.12(pH)−2064/T−3.69I1/2+ 0.73I The energy of activitation was 39±2 kJ-mol−1 and is independent of ionic strength. At a constant ionic strength (I=1, 3 and 6m) in NaCl−NaClO4 mixtures the Cl− dependence of the rates is attributed to the oxidation of the various forms of Cu(I) in the solution. The rate constants for the oxidation of the various species are found to be functions of ionic strength. At a constant ionic strength (I=1) in NaCl−NaClO4 solutions, the effect of temperature is independent of the chloride concentration. The effect of Mg2+ and HCO 3 − on the oxidation rate was determined as a function of chloride concentration (1 to 6m) at 25°C and pH=8. The addition of Mg2+ causes the rate to decrease and the addition of HCO 3 − causes the rate to increase. The possible causes of these effects are discussed. Empirical equations for the rate of oxidation of Cu(I) in Na-Mg-Cl-HCO3 solutions as a function of composition are used to make reliable estimates of the oxidation in seawater and Red Sea waters.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00651464
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  • 5
    Digitale Medien
    Digitale Medien
    Equilibrium constants for the formation of Cu(I) halide complexes (1990)
    Springer
    Journal of solution chemistry 19 (1990), S. 375-390 
    Details
    ISSN: 1572-8927
    Schlagwort(e): Equilibrium constants ; CuCl ; CuBr ; complexes ; Pitzer equations ; spectral data
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Chemie und Pharmazie
    Notizen: Abstract The stoichiometric equilibrium constants, K 3 * , for the formation of CuX 3 2− from CuX 2 − +X− where X=Cl and Br, have been determined from spectral measurements. The measurements were made in NaCl and NaBr solutions from I=0.5 to 6.0m at 5, 25 and 45°C. The measured constants were extrapolated to infinite dilution using the Pitzer equations. The Pitzer parameters, β0, β1 and Cφ, for the interaction of Na+ with CuX 2 − and CuX 3 2− are briefly discussed.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00648142
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  • 6
    Digitale Medien
    Digitale Medien
    Examination of Tissue Distribution of Helicobacter pylori Within Columnar-Lined Esophagus (1999)
    Springer
    Digestive diseases and sciences 44 (1999), S. 1165-1168 
    Details
    ISSN: 1573-2568
    Schlagwort(e): H. PYLORI ; INTESTINAL METAPLASIA ; GASTRIC METAPLASIA ; COLONIZATION ; COLUMNAR-LINED ESOPHAGUS ; BARRETT'S ESOPHAGUS
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Abstract H. pylori may colonize columnar-lined esophagus,although an etiologic role in esophageal adenocarcinomais unproven. H. pylori can adhere to intestinalmetaplasia in the stomach. This study was designed to examine if H. pylori adheres to specializedintestinal metaplasia in columnar-lined esophagus.Esophageal biopsies from patients with columnar-linedesophagus were reviewed. Patients with only gastric metaplasia were excluded. Sections withspecialized intestinal metaplasia in at least one thirdof at least one gland were recut, stained using theGiemsa stain, and reexamined by two independentpathologists using strict criteria for adherence by H.pylori . The 209 esophageal biopsies with adequatespecialized intestinal metaplasia from 58 patients wereexamined: H. pylori was only seen on gastric metaplasia in three patients — and never onspecialized intestinal metaplasia. Within the esophagus,H. pylori adheres only to gastric metaplasia, which isnot considered premalignant for esophagealadenocarcinoma.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1023/A:1026628307895
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