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  • 1
    Electronic Resource
    Electronic Resource
    Metastable transitions in the mass spectra of methyl and phenylthiohydantoin derivatives of amino acids (1972)
    Chichester : Wiley-Blackwell
    Biological Mass Spectrometry 6 (1972), S. 39-45 
    Details
    ISSN: 0030-493X
    Keywords: Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: The mass spectra of a number of methyl- and phenylthiohydantoin amino acid derivatives have been obtained. The major metastable transitions occurring in the mass spectra of these derivatives have been identified and measured. The major fragmentation pathways associated with the metastable transitions have been outlined and are discussed for each group of compounds. Inspection of the metastable data has shown that there is at least one unique metastable transition occurring for each thiohydantoin derivative which may be used to uniquely identify that derivative in the presence of a mixture of thiohydantoin derivatives obtained from the Edman degradation of a peptide or protein. The use of metastable ions to uniquely identify thiohydantoin derivatives in mixtures has proven useful in the identification of the MTH and PTH derivatives of glycine whose molecular ions are not unique and for resolving such ambiguities as occur for example in the mixture of leucine and isoleucine.
    Additional Material: 2 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/oms.1210060106
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    Paper (German National Licenses)
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  • 2
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    Development: Time to leave GDP behind (2014)
    Nature Publishing Group (NPG)
    Details
    Publication Date: 2014-01-18
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Costanza, Robert -- Kubiszewski, Ida -- Giovannini, Enrico -- Lovins, Hunter -- McGlade, Jacqueline -- Pickett, Kate E -- Ragnarsdottir, Kristin Vala -- Roberts, Debra -- De Vogli, Roberto -- Wilkinson, Richard -- England -- Nature. 2014 Jan 16;505(7483):283-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/24436983" target="_blank"〉PubMed〈/a〉
    Keywords: Conservation of Natural Resources/statistics & numerical data ; Environment ; Gross Domestic Product/statistics & numerical data/*trends ; Humans ; Life Expectancy ; Personal Satisfaction ; *Quality of Life ; Socioeconomic Factors ; Sociology/*methods
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Published by Nature Publishing Group (NPG)
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