Design and Validation of In-Source Atmospheric Pressure Photoionization Hydrogen/Deuterium Exchange Mass Spectrometry with Continuous Feeding of D{sub 2}O

In this study, continuous in-source hydrogen/deuterium exchange (HDX) atmospheric pressure photoionization (APPI) mass spectrometry (MS) with continuous feeding of D{sub 2}O was developed and validated. D{sub 2}O was continuously fed using a capillary line placed on the center of a metal plate posit...

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Bibliographic Details
Published inJournal of the American Society for Mass Spectrometry Vol. 29; no. 1
Main Authors Acter, Thamina, Lee, Seulgidaun, Cho, Eunji, Jung, Maeng-Joon, Kim, Sunghwan
Format Journal Article
LanguageEnglish
Published United States 15.01.2018
Subjects
ATMOSPHERIC PRESSURE
CAPILLARIES
DEUTERIUM
HEAVY WATER
HYDROGEN
INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY
INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
MATHEMATICAL SOLUTIONS
NITROGEN
OXYGEN
PETROLEUM
PHOTOIONIZATION
SULFUR COMPOUNDS
VALIDATION
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Summary:In this study, continuous in-source hydrogen/deuterium exchange (HDX) atmospheric pressure photoionization (APPI) mass spectrometry (MS) with continuous feeding of D{sub 2}O was developed and validated. D{sub 2}O was continuously fed using a capillary line placed on the center of a metal plate positioned between the UV lamp and nebulizer. The proposed system overcomes the limitations of previously reported APPI HDX-MS approaches where deuterated solvents were premixed with sample solutions before ionization. This is particularly important for APPI because solvent composition can greatly influence ionization efficiency as well as the solubility of analytes. The experimental parameters for APPI HDX-MS with continuous feeding of D{sub 2}O were optimized, and the optimized conditions were applied for the analysis of nitrogen-, oxygen-, and sulfur-containing compounds. The developed method was also applied for the analysis of the polar fraction of a petroleum sample. Thus, the data presented in this study clearly show that the proposed HDX approach can serve as an effective analytical tool for the structural analysis of complex mixtures. .
ISSN:1044-0305
1879-1123
DOI:10.1007/S13361-017-1831-8