Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 8 of 8 for “"Ambient mass spectrometry"”.
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Particle formation in ambient mass spectrometry
… of atmospheric pressure ion formation used in mass spectrometry: atmospheric pressure matrix-assisted laser desorption ionization (MALDI) and inlet ionization. The methods for particle formation were 1) ultraviolet (UV) laser ablation, 2) infrared (IR) laser ablation, and 3) shock-generated …
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Application of ambient mass spectrometry in electrochemical systems
Made available in DSpace on 2017-09-29T16:39:22Z (GMT). No. of bitstreams: 3 LIU-DISSERTATION-2017.pdf: 20432445 bytes, checksum: 822e7960639d048f27c3a1682c181f9d (MD5) LICENSE.txt: 4208 bytes, checksum: 26bcd64ff74cb25876083ac4ab0eacd2 (MD5) PROQUEST_LICENSE.txt: 4554 bytes, checksum: …
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Direct drug screening and lipid profiling using ambient mass spectrometry
<p>Mass spectrometry (MS) stands in an outstanding position in analysis of biological specimens owing to its abundant structural information, high accuracy, incomparable sensitivity, high speed, and the large variety of its applications. The ion source, an instrumental part for converting the …
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Development of ambient mass spectrometry methods for investigating iron-catalyzed oxidation reactions
… give indirect insight into a reaction mechanism, mass spectrometry (MS) is unparalleled in the level of chemical specificity. Ambient MS methods can capture fleeting intermediates of catalytic cycles with reaction times of a few milliseconds or less, and the novel methodology described in this …
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Exploring recent innovations in ambient mass spectrometry to deliver a paradigm shift in food safety, security and authenticity
… aim of this thesis was to determine whether ambient mass spectrometry platforms could firstly be used to undertake the types of authenticity and quality confirmations that industry desires.<br/> <br/>The first project was to assess whether rapid evaporative ionisation mass spectrometry could …
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Innovations in detecting food fraud using mass spectrometric platforms and chemometric modelling
… The aim of this thesis was to study whether mass spectrometric platforms, especially ambient mass spectrometry (AMS) techniques, coupled with chemometric modelling could play a prominent role in the detection of food fraud.<br/>Firstly, a two-tier approach of Fourier-Transform infrared …
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Mass Spectrometric Analysis of Thiol Proteins/Peptides Following Selenamide Derivatization And Electrolytic Reduction of Disulfide Bonds
<p>Ambient mass spectrometry (MS) methods such as desorption electrospray ionization-mass spectrometry (DESI-MS) provides direct ionization of analytes with little or no sample preparation. The capability for liquidsamples analysis allows DESI-MS to be coupled with many devices such as …
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Laser Electrospray Mass Spectrometry: Mechanistic Insights and Classification of Inorganic-Based Explosives and Tissue Phenotypes Using Multivariate Statistics
… and electrospray ionization for capture and mass analysis of the gas phase ions. The internal energy deposition from nonresonant vaporization with femtosecond laser pulses was measured using dried and liquid samples of p-substituted benzylpyridinium ions and peptides. In the comparison of the …