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  • 1
    Electronic Resource
    Electronic Resource
    An alkaline protease in the delayed hypersensitivity skin lesions in the guinea-pigs (1979)
    Springer
    Cellular and molecular life sciences 35 (1979), S. 1110-1112 
    Details
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary An alkaline hemoglobinolytic protease was extracted from the delayed hypersensitivity skin lesions induced by bovine γ-globulin as an antigen in the guinea-pig. The enzyme was heat-labile and inhibited by thiol-blocking reagents. The mol.wt was more than 100,000 and optimal pH around 9.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01949973
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  • 2
    Electronic Resource
    Electronic Resource
    Neutral proteases in the guinea-pig lymphocytes (1978)
    Springer
    Cellular and molecular life sciences 34 (1978), S. 526-528 
    Details
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary Partial purification of neutral proteolytic enzymes in guinea-pig lymphocytes yielded 2 enzymes. Both enzymes were heat-labile and inhibited by thiol reagents. The molecular weights were more than 200,000 and 150,000–200,000, and optimal pH around 9 and 8, respectively.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01935970
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  • 3
    Electronic Resource
    Electronic Resource
    Substance P as a potent stimulator of sneeze responses in experimental allergic rhinitis of guinea pigs (1992)
    Springer
    Inflammation research 37 (1992), S. 245-249 
    Details
    ISSN: 1420-908X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Substance P was examined for sneeze-inducing activity and its involvement of sneeze responses in experimental allergic rhinitis. Substance P, dripped into a nostril of guinea pigs, at concentrations of 100 pM and above induced sneezing in a dose-dependent fashion. The activity of substance P was not affected by the previous subcutaneous injections of capsaicin that depleted substance P in nerve fibers. Histamine induced sneezing at concentrations of 30 mM and above and the activity was reduced by capsaicin treatment. The frequency of antigen-induced sneezing was proportional to the substance P content in nasal mucosa of sensitized guinea pigs treated with increasing doses of capsaicin; correlation coefficient 0.91. These results suggest that substance P plays an important role as a stimulator of sneeze responses in experimental allergic rhinitis in guinea pigs.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02028116
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  • 4
    Electronic Resource
    Electronic Resource
    Tast polarographic determination of Thorium(IV) by means of substitution reduction of Bismuth(III)-ethylenediaminetetraacetate chelate (1978)
    Springer
    Fresenius' Zeitschrift für analytische Chemie 293 (1978), S. 104-106 
    Details
    ISSN: 1618-2650
    Keywords: Best. von Thorium(IV) ; Polarographie ; Substitutionsreduktion des Bi(III)-ÄDTE-Chelats, Tastpolarographie
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Summary Thorium(IV) facilitates the reduction of bismuth(III)-ethylenediaminetetraacetate chelate in weakly acidic medium and gives a new wave at a more positive potential, because the EDTA anion liberated by the reduction will be caught immediately by thorium(IV) ion. The height of the substitution reduction wave is proportional to the concentration of thorium(IV) between 0.1 and 0.6 mM. Properties of the wave and the electrode process were investigated.
    Notes: Zusammenfassung Thorium(IV) erleichtert die Reduktion des Wismut(III)-ÄDTE-Chelats in schwach sauerem Medium und gibt eine neue Welle bei positiverem Potential, da das durch die Reduktion freigesetzte ÄDTE-Anion vom Thorium(IV)-Ion sofort ergriffen wird. Die Höhe der Substitutionsreduktionswelle ist zwischen 0,1 und 0,6 mM der Thorium(IV)-Konzentration proportional. Eigenschaften der Welle und der Elektrodenvorgang wurden untersucht.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00486984
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  • 5
    Electronic Resource
    Electronic Resource
    Stability constants of copper(II) and nickel(II) complexes with N-(2-aminoethyl)-N-(2-hydroxyethyl)dithiocarbamic acid (1978)
    Springer
    Fresenius' Zeitschrift für analytische Chemie 293 (1978), S. 302-303 
    Details
    ISSN: 1618-2650
    Keywords: Best. der Stabilitätskonstanten des Komplexes von Kupfer(II) und Nickel(II) mit N-(2-aminoäthyl)-N-(2-hydroxyäthyl)dithiocarbaminsäure
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00491331
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  • 6
    Electronic Resource
    Electronic Resource
    Differential pulse-polarographic determination of cobalt after extraction as 1-nitroso-2-naphtholate (1983)
    Springer
    Fresenius' Zeitschrift für analytische Chemie 315 (1983), S. 487-490 
    Details
    ISSN: 1618-2650
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Summary The differential pulse-polarographic determination of cobalt in the ppb-region after extraction of cobalt(III)-1-nitroso-2-naphthol chelate from citrate buffer solution (pH 5) into benzene is described. The cobalt(III) chelate is determined in a electrolysis solution composed of a 1∶1 mixture of the extract and acetonitrile solution containing 8 mmol/l perchloric acid and 0.2 mol/l sodium perchlorate. A well-developed reduction wave of the ligand in the cobalt(III) chelate is obtained. The limit of determination is in the range of 1–2 ppb of cobalt.
    Notes: Zusammenfassung Ein Verfahren zur differential-pulspolarographischen Bestimmung von Cobalt im ppb-Bereich nach Extraktion als Cobalt(III)-1-nitroso-2-naphtholat-Chelat aus Citratpufferlösung (pH 5) in Benzol wird beschrieben. Das Cobalt(III)-Chelat wird in einer Elektrolysenlösung aus einem 1∶1-Gemisch von dem Extrakt und einer Acetonitrillösung bestimmt, die 8 mmol/l PerchlorsÄure und 0,2 mol/l Natriumperchlorat enthÄlt. Es ergibt sich eine gut ausgebildete Reduktionsstufe des Eiganden im Cobalt(III)-Chelat. Die Bestimmungsgrenze liegt im Bereich von 1–2 ppb Co.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00493792
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  • 7
    Electronic Resource
    Electronic Resource
    Differential pulse polarographic behaviour of copper(II)-ethyleneglycol-bis-(2-aminoethylether)-tetraacetate and copper(II)-ethylenediaminetetraacetate chelates in the presence of Lanthanum(III) (1979)
    Springer
    Fresenius' Zeitschrift für analytische Chemie 296 (1979), S. 390-393 
    Details
    ISSN: 1618-2650
    Keywords: Substitutionsreduktion von Kupfer(II)-EGTE-Chelat und Kupfer(II)-EDTE-Chelat ; Polarographie, Differentialpulse ; Best. von Lanthan(III)
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Summary The substitution reduction waves of copper(II)-EGTA and copper(II)-EDTA chelates were investigated with differential pulse and tast polarographic methods. The reduction wave of copper(II)-EGTA chelate shifts to more positive potential in the presence of lanthanum(III) and a new differential pulse peak appears. The peak height increases linearly with increasing concentration of lanthanum(III) between 5 and 25 μM. When the copper(II)-EDTA chelate is reduced in a supporting electrolyte containing no buffer solution, lanthanum(III) gives a substitution reduction peak, but in acetate buffer solution the lanthanum(III) peak disappears.
    Notes: Zusammenfassung Die Substitutionsreduktionswellen des Kupfer(II)-EGTE- und des Kupfer(II)-EDTE-Chelats wurden mit Hilfe der Differential-Puls- und der Tast-Polarographie untersucht. Die Reduktionswelle des Kupfer(II)-EGTE-Chelats verschiebt sich in Gegenwart von Lanthan(III) zu positiverem Potential und ein neuer Differential-Puls-Peak erscheint. Die Peakhöhe nimmt mit steigender Lanthanionkonzentration zwischen 5 und 25 μM linear zu. Wenn Kupfer(II)-EDTE-Chelat im pufferfreien Leitelektrolyt reduziert wird, gibt Lanthan(III) einen Substitutionsreduktions-Peak, in Acetat-Pufferlösung jedoch verschwindet der Lanthan(III)-Peak.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00479981
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  • 8
    Electronic Resource
    Electronic Resource
    Polarographic substitution reduction of copper(II)-ethyleneglycol-bis-(2-aminoethylether)-N,N,N′,N′-tetraacetate and copper(II)-Ethylenediaminetetraacetate chelates in the presence of alkaline earth metal ions (1979)
    Springer
    Fresenius' Zeitschrift für analytische Chemie 296 (1979), S. 386-389 
    Details
    ISSN: 1618-2650
    Keywords: Substitutionsreduktion von Kupfer(II)-EGTE-Chelat und Kupfer(II)-EDTE-Chelat, zur Best. von Magnesium, Strontium, Barium ; Polarographie
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Summary When the copper(II)-EGTA complex is polarographically reduced without an excess of the ligand, strontium and barium ions give a new wave at a more positive potential. The limiting currents of the new waves are proportional to the strontium and barium ion concentrations, respectively. Magnesium ion shows only a very poorly developed wave. The reduction of copper(II)-EDTA chelate in the presence of alkaline earth metal ions is different; in this case the substitution reduction wave is only slightly separated from the main wave.
    Notes: Zusammenfassung Wenn der Kupfer(II)-EGTE-Komplex ohne Überschuß des Liganden polarographisch reduziert ist, ergeben Strontium- und Bariumionen eine neue Welle bei positiverem Potential. Die Grenzströme der neuen Wellen sind proportional der Strontium- bzw. Bariumionenkonzentration. Magnesiumionen ergeben nur eine sehr schwach ausgebildete Welle. Die Reduktion des Kupfer(II)-EDTE-Chelats in Gegenwart von Erdalkalimetallionen zeigt ein anderes Verhalten; in diesem Fall ist die Substitutionsreduktionswelle nur wenig von der Hauptwelle getrennt.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00479980
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  • 9
    Electronic Resource
    Electronic Resource
    Electron spectroscopy of doubly-excited helium-like ions (1991)
    Springer
    The European physical journal 21 (1991), S. S225 
    Details
    ISSN: 1434-6079
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Ejected electrons from helium-like doubly-excited carbon and boron ions, produced by C6+ and B5+ with He collisions, were measured by the zero-degree electron spectroscopy technique. Electrons from configurations 21nl were observed in a wide energy range.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01426299
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  • 10
    Electronic Resource
    Electronic Resource
    Azimuthal angular dependence of the K-x-ray emission in swift Ne7+-Ne collisions (1991)
    Springer
    The European physical journal 21 (1991), S. S295 
    Details
    ISSN: 1434-6079
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01426330
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    Paper (German National Licenses)
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