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  • 1
    Electronic Resource
    Electronic Resource
    The implementation and application of precursor-ion scanning using a four-sector instrument (1992)
    New York, NY : Wiley-Blackwell
    Rapid Communications in Mass Spectrometry 6 (1992), S. 272-277 
    Details
    ISSN: 0951-4198
    Keywords: Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Physics
    Notes: Precursor-ion scanning, in which all ions that fragment to form a selected product ion are detected, has been implemented on a four-sector instrument. The various experimental parameters associated with the experiment i.c., prcursor mass range, product and precursor ion resolution, collision energy and mass-measurement accuracy have been established via a series of experiments, Brief examples of the use of the technique in the characterization of synthetic polymers, quaternary salts and peptieds are described together with the analysis of a mixture of phthalate esters.
    Additional Material: 8 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/rcm.1290060410
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    The use of tandem mass spectrometry as a problem-solving tool in the industrial environment (1990)
    New York, NY : Wiley-Blackwell
    Rapid Communications in Mass Spectrometry 4 (1990), S. 454-460 
    Details
    ISSN: 0951-4198
    Keywords: Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Physics
    Notes: This paper deals with a number of the benefits associated with a variety of tandem mass spectrometer geometries and the way in which these configurations have been applied to the solution of real problems. It discusses the use made of a variety of tandem mass spectrometry approaches to the study of analytical problems of industrial relevance. ICIs utilization of tandem mass spectrometry has grown substantially from an initial involvement in the early 1980s to a point where a number of instruments have been installed and used predominantly for trace analysis, structural studies and in the characterization of complex mixtures. We have selected a small number of examples of the use of the various tandem mass spectrometry approaches emphasizing the unique features of the technique.
    Additional Material: 17 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/rcm.1290041025
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Characterization of amorphous carbon films by 13C CP MAS NMR spectroscopy (1993)
    Bognor Regis [u.a.] : Wiley-Blackwell
    Journal of Polymer Science Part B: Polymer Physics 31 (1993), S. 1205-1211 
    Details
    ISSN: 0887-6266
    Keywords: plasma polymers ; CP MAS NMR ; dipolar dephasing experiments ; lineshape analysis ; Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: 13C CP MAS NMR spectroscopy was used to characterize α-C:H materials generated from methane and hydrogen mixtures using a microwave plasma. Dipolar dephasing experiments indicate a range of Tdd making quantification of quaternary “diamond”-like carbons difficult. Unconstrained lineshape analysis is not suitable for the deconvolution of the NMR spectra, but linewidth constrained analyses gave reasonable results. © 1993 John Wiley & Sons, Inc.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/polb.1993.090310915
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    Paper (German National Licenses)
    Fulltext
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