NDLI: Laser desorption/ionization mass spectrometric analysis of small molecules using fullerene-derivatized silica as energy-absorbing material.

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Laser desorption/ionization mass spectrometric analysis of small molecules using fullerene-derivatized silica as energy-absorbing material.

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Szabo, Zoltan Vallant, Rainer M. Takátsy, Anikó Bakry, Rania Najam-ul-Haq, Muhammad Rainer, Matthias Huck, Christian W. Bonn, Günther K.
Description	Country affiliation: Austria Author Affiliation: Szabo Z ( Institute of Analytical Chemistry and Radiochemistry, Leopold-Franzens University, Innrain 52a, 6020 Innsbruck, Austria.)
Abstract	In spite of the growing acceptance of matrix-assisted laser desorption/ionization time-of-flight mass spectrometry for the analysis of a wide variety of compounds, including polymers and proteins, its use in analyzing low-molecular-weight molecules (<1000 m/z) is still limited. This is mainly due to the interference of matrix molecules in the low-mass range. Here the derivatized fullerenes covalently bound to silica particles with different pore sizes are applied as thin layer for laser desorption/ionization (LDI) mass spectrometric analysis. Thus, an interference of intrinsic matrix ions can be eliminated or minimized in comparison with the state-of-the-art weak organic acid matrices. The desorption/ionization ability of the developed fullerene-silica materials depends on the applied laser power, sample preparation and pore size of the silica particles. Thus, fullerene-silica serves as an LDI support for mass spectrometric analysis of molecules (<1500 Da). The performance of the fullerene-silica is demonstrated by the mass analysis of variety of small molecules such as carbohydrates, amino acids, peptides, phospholipids and drugs.
File Format	HTM / HTML
ISSN	10765174
Issue Number	5
Volume Number	45
e-ISSN	10969888
Journal	Journal of Mass Spectrometry
Language	English
Publisher	Wiley
Publisher Date	2010-05-01
Publisher Place	Great Britain (UK)
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Discipline Spectroscopy Discipline Chemistry Techniques Fullerenes Chemistry Silicon Dioxide Spectrometry, Mass, Matrix-assisted Laser Desorption-ionization Methods Amino Acids Carbohydrates Deoxycholic Acid Molecular Weight Phospholipids Journal Article Research Support, Non-u.s. Gov't
Content Type	Text
Resource Type	Article
Subject	Spectroscopy Medicine

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