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  • 1
    Electronic Resource
    Electronic Resource
    Myxozyma neotropica sp. nov. (Candidaceae) — a new yeast species from costa rica (1992)
    Springer
    Antonie van Leeuwenhoek 62 (1992), S. 261-265 
    Details
    ISSN: 1572-9699
    Keywords: Myxozyma neotropica ; Candidaceae ; yeasts ; taxonomy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Two strains of an undescribed, soil-born species of the genusMyxozyma were recovered. They differ from other accepted species of this genus in their carbon assimilation pattern, mol% G+C and low extent of DNA complementary. A description of the new species,Myxozyma neotropica, and a key to the species accepted in the genus are given.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00572593
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Myxozyma vanderwaltii sp. nov. (Candidaceae), a new yeast species isolated from a flower ofProtea repens (L.) L. (1993)
    Springer
    Antonie van Leeuwenhoek 63 (1993), S. 17-21 
    Details
    ISSN: 1572-9699
    Keywords: Myxozyma vanderwaltii ; Candidaceae ; yeasts ; taxonomy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Three strains of an undescribed species of the genusMyxozyma were recovered. The new species differs from other accepted species of the genus in its assimilation pattern of carbon sources, mol% G + C and low DNA-DNA homology. A description of the new species,Myxozyma vanderwaltii, and a key to the species accepted in the genus are given.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00871726
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    HPLC with electrochemical detection of metal-flavonoid-complexes isolated from food (1988)
    Springer
    Chromatographia 26 (1988), S. 133-138 
    Details
    ISSN: 1612-1112
    Keywords: Column liquid chromatography ; Electrochemical detection ; Flavonoids ; Metal-complexes
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Summary The electrochemical and chromatographic behaviour of flavonoid standards and of flavonoids extracted from food (green tea, black tea and onions) is investigated with respect to metalbinding properties. It is shown that metals such as iron, copper or aluminium are complexed by flavonoids, preferrably by those having an aromatic o-dihydroxy structure. This is confirmed by cyclic voltammetry on HPLC fractions (stopped flow) and by AAS measurement of metals. As the complexing sites of flavonoids are closely related to electrochemical properties, this is used for an indirect detection of metal species at low oxidation potentials. For iron species in particular a sensitive and selective detection is possible. For copper reductive detection can also be used.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02268137
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Effective on-line coupling of HPLC and flame-AAS by means of hydraulic high pressure nebulization (1990)
    Springer
    Chromatographia 29 (1990), S. 254-258 
    Details
    ISSN: 1612-1112
    Keywords: Column liquid chromatography ; On-line flame-AAS detection ; Hydraulic high pressure nebulization ; Trace metal speciation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Summary Hydraulic high pressure nebulization is used as an effective way of on-line coupling of HPLC to flame-AAS for speciation of metal compounds in the ng range. Compared to coupling with a conventional nebulizer a signal enhancement by a factor of 7.5 (peak height) and 10.1 (peak area) for copper is obtained. Using an injected volume of 50 μL the detection limits for Cu, Fe, Ni and Cd are below 0.1 μg/mL (=5ng) and for Mg below 0.01 μg/mL (=0.5ng). The effects of HPLC flow-rate and nebulization nozzle diameter on the signal peak height have been investigated. The performance of the system is demonstrated using speciation of iron. A base-line separation of Fe(II) and Fe(III) is achieved within two minutes. Also species changes (Fe acetate to Fe citrate) can be analysed using the proposed system.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02317914
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    Paper (German National Licenses)
    Fulltext
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