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  • ZIB Catalog
  • Articles: DFG German National Licenses  (7)
  • 2005-2009  (2)
  • 1945-1949  (5)
  • 1920-1924
  • Spektralphotometrie  (5)
  • 27.80.+w 190 ⩽ A ⩽ 219  (2)
  • 1
    ISSN: 1434-601X
    Keywords: 27.80.+w 190 ⩽ A ⩽ 219 ; 25.40.-h Nucleon-induced reactions ; 25.40.Sc Spallation reactions
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract. Neutrons and light charged particles produced in 62.9MeV proton-induced reactions on 208Pb were measured during a single experiment performed at the CYCLONE facility in Louvain-la-Neuve (Belgium). Two independent experimental set-ups were used to extract double differential cross-sections for neutrons, protons, deuterons, tritons, 3He and alpha-particles. Charged particles were detected using a set of Si- Si- CsI telescopes from 25° to 155°, by step of 10 degrees. Neutrons were measured using shielded DeMoN counters, liquid NE213 scintillators, at 24°, 35°, 55°, 80° and 120°. These data allowed the determination of angle differential, energy differential and total production cross-sections. A comparison with theoretical calculations (MCNPX, FLUKA and TALYS) has been performed. It shows that the neutron and proton production rates are well predicted by MCNPX, using the INCL4 option. All the other codes underestimate the neutron production whereas they overestimate the proton one. For composite particles, which represent 17% of the charged particle total reaction cross-section, neither the shape nor the amplitude of the cross-sections are correctly predicted by the models.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1434-601X
    Keywords: 29.30.Kv X- and γ-ray spectroscopy ; 23.20.Lv γ transitions and level energies ; 21.60.Ev Collective models ; 27.80.+w 190 ⩽ A ⩽ 219
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract. Excited states in 191Pt have been populated using the reaction 186W + 11B at 85MeV beam energy. Gamma-ray coincidences were measured using the EUROGAM-II spectrometer array. The level scheme has been extended considerably. Evidence for favoured structures of highly triaxial shape with γ ∼ -90° coexisting with oblate structures has been obtained by comparison with total Routhian surface and cranked shell model calculations. The presence of proton excitations in both positive- and negative-parity states has been confirmed.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Fresenius' Zeitschrift für analytische Chemie 265 (1947), S. 325-328 
    ISSN: 1618-2650
    Keywords: Best. Von Benzylhydrazin und phenelzin ; Spektralphotometrie ; Reaktion mit Glutacondialdehyd
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Zusammenfassung Glutacondialdehyd, hergestellt aus Pyridylpyridiniumdichlorid und Natronlauge, reagiert, wenn er im Überschuß vorliegt, in saurer Lösung mit den Monoaminoxydasehemmern Benzylhydrazin und Phenelzin unter Bildung roter Kondensationsprodukte. Diese Farbreaktion bildet die Grundlage der photometrischen Bestimmungsverfahren, bei denen 0,6–100 nMol/ml der Hydrazinderivate bestimmt werden können. Bei 2 nMol/ml betragen die Variationskoeffizienten 3,2 Rel-% für Benzylhydrazin und 5,2 Rel-% für Phenelzin.
    Notes: Abstract Benzylhydraine and phenelzine both of which are inhibitors of monoaminoxidase reactions form red condensation products in their reaction with glutacondialdehyde. The latter compound which was prepared from pyridylpyridinium dichloride and sodium hydroxide has to be in excess concentration. This colour reaction is used in a photometric method to determine 0.6 to 100 nmole/ml of the hydrazine derivatives. The variation coefficients at 2 nmole/ml are 3.2 and 5.2% rel. for benzylhydrazine and phenelzine, respectively.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Fresenius' Zeitschrift für analytische Chemie 265 (1947), S. 334-336 
    ISSN: 1618-2650
    Keywords: Best. von Ascorbinsäure und Dehydroascorbinsäure in Pharmazeut. Produkten ; Spektralphotometrie ; Dimethylphenylendiamin als Reagens
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Summary The condensation of dehydroascorbic acid with o-phenylene diamine or its 4,5-dimethyl derivative yields quinoxaline derivatives which can be measured by photometry. Ascorbic acid can be determined after preliminary oxidation with mercury(II) chloride in the same way. This highly specific method has been employed for determinations in pharmaceutical formulations (coefficient of variation ± 1–1.5%).
    Notes: Zusammenfassung Die Kondensation von Dehydroascorbinsäure mit o-Phenylendiamin oder 4,5-Dimethyl-o-phenylendiamin führt zur Bildung von spektrophotometrisch auswertbaren Chinoxalinderivaten. Ascorbinsäure kann nach vorangehender Oxidation mit Quecksilberchlorid auf die gleiche Weise bestimmt werden. Die Methode wurde zu Bestimmungen in pharmazeutischen Präparaten verwendet (Variationskoeffizient ± 1–1,5%).
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Springer
    Fresenius' Zeitschrift für analytische Chemie 265 (1947), S. 348-348 
    ISSN: 1618-2650
    Keywords: Best. von Eisen(III) ; Spektralphotometrie ; Extraktion mit Thiothenoyltrifluoraceton
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Springer
    Fresenius' Zeitschrift für analytische Chemie 265 (1947), S. 349-349 
    ISSN: 1618-2650
    Keywords: Best. von Eisen(III) in Stahl ; Spektralphotometrie ; Extraktion mit Acetylaceton und Pyridin
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Springer
    Fresenius' Zeitschrift für analytische Chemie 265 (1947), S. 351-351 
    ISSN: 1618-2650
    Keywords: Best. von Kobalt neben Nickel ; Spektralphotometrie ; Extraktion mit Äthylacetat als Xanthate
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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