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  • 1995-1999  (3)
  • 1960-1964
  • 23.40.Hc  (1)
  • Crystal growth  (1)
  • DTA, IR/RAMAN, 207Pb MAS NMR  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Automated and computer-controlled method for the measurement of the crystallization of calcium oxalate monohydrate in urine (1995)
    Springer
    Urological research 23 (1995), S. 407-411 
    Details
    ISSN: 1434-0879
    Keywords: Urolithiasis ; calcium oxalate ; Crystal growth ; Ion-selective electrode ; Automated kinetic measurement
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Monitoring of crystallization of calcium salts with ion-selective electrodes has turned out to be a very sensitive method. The difficulties of handling these electrodes in native whole urine and other biological fluids have been eliminated by new calcium analyzers, which clean and calibrate the electrodes after each measurement. To study crystallization kinetics, repeated calcium ion measurements have to be performed at regular intervals. For this purpose we have developed a special sampler and software. The sampler brings a thermostat-controlled crystallization chamber to the analyzer at preselected intervals. The computer directs and coordinates the sampler and the analyzer, stores the received results and prints out growth curves. Furthermore it calculates the half-time (h) and the maximum decrease of ionic calcium at infinite incubation time (ΔCa ∞ 2+ ). Both values are shown to characterize the growth of calcium oxalate monohydrate in urine. Results are obtained within 40 min.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00698744
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  • 2
    Electronic Resource
    Electronic Resource
    Gamow-Teller strength distribution in the beta-decay of100Ag from total-absorption gamma spectrometry (1995)
    Springer
    The European physical journal 351 (1995), S. 149-153 
    Details
    ISSN: 1434-601X
    Keywords: 21.10.−k ; 23.40.Hc ; 27.60,+j
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The EC/β+-decay of the odd-odd nucleus100Ag was studied by means of total absorptionγ-ray spectrometry. Most of the Gamow-Teller strength was found to be concentrated at an excitation energy of 5.6 MeV in100Pd, the FWHM of this resonance being 1.5 MeV. The measured strength distribution which is interpreted within the BCS approximation as being due to the dominant population of four-quasiparticle excitations, resembles the distribution predicted by an advanced shell-model calculation for the98Ag →98Cd decay.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01289525
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Pb2PdX6 (X = Cl, Br) - Verbindungen mit gestreckten [PdX6]-OktaedernProfessor Hanskarl Müller-Buschbaum zum 65. Geburtstage gewidmet (1996)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 622 (1996), S. 1231-1235 
    Details
    ISSN: 0044-2313
    Keywords: Dilead(II)-hexahalogenopalladate(II) ; crystal structure ; strongly elongated PdX6 octahedra ; DTA, IR/RAMAN, 207Pb MAS NMR ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Pb2PdX6 (X = Cl, Br) - Compounds with Elongated [PdX6] OctahedraIn contradiction to published data new compounds in the systems PbX2 - PdX2 (X = Cl, Br) with the formula Pb2PdCl6 (I) and Pb2PdBr6 (II) were found. These were synthesized by thermal treatment of the corresponding mixtures of PbX2 and PdX2 (X = Cl, Br). X-ray single crystal structure analysis shows isotypism of I and II, monoclinic, P21/c (No. 14), Z = 2, I: a = 9.037(2) Å, b = 6.224(1) Å, c = 8.162(1) Å, β = 90.31(7)β, II: a = 9.512(7) Å, b = 6.584(8) Å, c = 8.383(3) Å, β = 90.07(5)º. Strongly elongated PdX6 octahedra are found in the crystal structure. Additional characterisation of the compounds was done by DTA, IR/RAMAN spectra and 207Pb MAS NMR investigations. Remarcable low field shifts were found for 207Pb.
    Notes: Entgegen Literaturangaben wurden in den Systemen PbX2 - PdX2 (X = Cl, Br) die neuen Verbindungen Pb2PdCl6(I) und Pb2PdBr6(II) aufgefunden. Sie wurden durch thermische Behandlung der binären Halogenide PbX2 und PdX2 im molaren Verhältnis 2:1 dargestellt (Einkristalle). Die Kristallstrukturen wurden mit Einkristallröntgenuntersuchungen ermittelt. I und II sind isotyp, monoklin, P21/c (Nr. 14), Z = 2, I: a = 9,037(2) Å, b = 6,224(1) Å, c = 8,162(1) Å, β = 90,31(7)º, II: a = 9,512(7) Å, b = 6,584(8) Å, c = 8,383(3) Å, β = 90,07(5)º. In Pb2PdX6 werden stark gestreckte PdX6-Oktaeder beobachtet. Die Verbindungen wurden außerdem mittels DTA, IR/RAMAN-Spektren und 207Pb-MAS-NMR-Untersuchungen charakterisiert. Für 207Pb wurde eine bemerkenswerte Tieffeldverschiebung beobachtet.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19966220721
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    Paper (German National Licenses)
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