Observation and Identification of Ion Dissociation Processes Occurring in the Drift Tube of a Time-of-flight Mass Spectrometer PDF Download
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Author: W. W. Hunt (Jr.)
Publisher:
ISBN:
Category : Ions
Languages : en
Pages : 24
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Book Description
The shifts in ion flight times produced by a flat-top potential barrier applied within the drift tube of a time-of-flight mass spectrometer are defined analytically in terms of the height of the potential barrier. These flight-time shifts are selectively dependent on the mass, charge, and kinetic energy of the ions involved; consequently, they can be used to spearate and identify the products of ion dissociation processes occurring in the drift tube. Comparisons of calculated and observed flight-time shifts for the 58 + to 43+, 42+ dissociations in n-butane are used to illustrate the applicability and present limitations of this method of identifying dissociation products. (Author).
Author: W. W. Hunt (Jr.)
Publisher:
ISBN:
Category : Ions
Languages : en
Pages : 24
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Book Description
The shifts in ion flight times produced by a flat-top potential barrier applied within the drift tube of a time-of-flight mass spectrometer are defined analytically in terms of the height of the potential barrier. These flight-time shifts are selectively dependent on the mass, charge, and kinetic energy of the ions involved; consequently, they can be used to spearate and identify the products of ion dissociation processes occurring in the drift tube. Comparisons of calculated and observed flight-time shifts for the 58 + to 43+, 42+ dissociations in n-butane are used to illustrate the applicability and present limitations of this method of identifying dissociation products. (Author).
Author: W. W. Hunt (Jr.)
Publisher:
ISBN:
Category : Ions
Languages : en
Pages : 24
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Book Description
The shifts in ion flight times produced by a flat-top potential barrier applied within the drift tube of a time-of-flight mass spectrometer are defined analytically in terms of the height of the potential barrier. These flight-time shifts are selectively dependent on the mass, charge, and kinetic energy of the ions involved; consequently, they can be used to spearate and identify the products of ion dissociation processes occurring in the drift tube. Comparisons of calculated and observed flight-time shifts for the 58 + to 43+, 42+ dissociations in n-butane are used to illustrate the applicability and present limitations of this method of identifying dissociation products. (Author).
Author: W. W. Hunt
Publisher:
ISBN:
Category : Differential equations
Languages : en
Pages : 16
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Book Description
Spurious fragment peaks that simulate fragment-ion products of ion dissociation reactions occurring in the reaction region can arise from processes that occur after the reactant ion has passed through the reaction region and entered the potential barrier used to separate normal products and reactants. Analytic expressions for the flighttime shifts characteristics of peaks arising in this way are derived. These flight-time shifts depend on the distance from the ion source to the potential barrier, whereas flight-time shifts for true fragments formed in the reaction zone are independent of this distance. (Author).
Author: W. W. Hunt (Jr.)
Publisher:
ISBN:
Category : Dissociation
Languages : en
Pages : 20
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Book Description
The fixed [delta]t method of identifying fragment ions formed in the drift tube (analyzer) of a time-of-flight mass spectrometer depends on determining the potential barrier characteristics required to produce a preselected flight-time shift. It is both simpler and more accurate than the comparison method used in a previous series of experiments.
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ISBN:
Category : Government publications
Languages : en
Pages : 1274
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ISBN:
Category : Aeronautics
Languages : en
Pages : 220
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Author: United States. Superintendent of Documents
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 1248
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Author:
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ISBN:
Category : Collisions (Nuclear physics)
Languages : en
Pages : 224
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Author:
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ISBN:
Category : Nuclear energy
Languages : en
Pages : 2066
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Author:
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ISBN:
Category : American literature
Languages : en
Pages : 648
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