Mass spectrometric analysis of low molecular mass polyesters by laser desorption/ionization on porous silicon
- 3 August 2004
- journal article
- research article
- Published by Wiley in Journal of Mass Spectrometry
- Vol. 39 (8) , 961-965
- https://doi.org/10.1002/jms.631
Abstract
A low molecular mass polyester was analyzed by desorption/ionization on porous silicon (DIOS) mass spectrometry. The results were compared with those of matrix‐assisted laser desorption ionization (MALDI) mass spectrometry using matrixes of α‐cyano‐4‐hydroxycinnamic acid (CHCA) and 10,15,20‐tetrakis(pentafluorophenyl)porphyrin (F20TPP). The CHCA matrix was not suitable for characterization of low molecular mass components of the polyester because the matrix‐related ions interfered with the component ions. On the other hand, the F20TPP matrix showed no interference because no matrix‐related ions appeared below m/z 822. However, the solvent selection for determining optimal conditions of sample preparation was limited, because F20TPP does not dissolve readily in any of the available organic solvents. In the DIOS spectra, the polymer ions were observed at high sensitivity without a contaminating ion. No matrix is needed for DIOS spectra of low molecular mass polyesters, facilitating sample preparation and selectivity of a precursor ion in post‐source decay measurements. Copyright © 2004 John Wiley & Sons, Ltd.Keywords
This publication has 30 references indexed in Scilit:
- Characterization of Polyester−Polyurethane Soft and Hard Blocks by a Combination of MALDI, SEC, and Chemical DegradationMacromolecules, 2002
- Matrix-assisted ultraviolet laser desorption of non-volatile compoundsPublished by Elsevier ,2001
- Evaluation of pyridoindoles, pyridylindoles and pyridylpyridoindoles as matrices for ultraviolet matrix‐assisted laser desorption/ionization time‐of‐flight mass spectrometryRapid Communications in Mass Spectrometry, 2001
- Direct assay of Aplysia tissues and cells with laser desorption/ionization mass spectrometry on porous siliconJournal of Mass Spectrometry, 2001
- Characterization of Polyether and Polyester Polyurethane Soft Blocks Using MALDI Mass SpectrometryAnalytical Chemistry, 2000
- Comparison of electrospray ionisation mass spectrometry with matrix-assisted laser desorption ionisation mass spectrometry and size exclusion chromatography for the characterisation of polyester resinsEuropean Journal of Mass Spectrometry, 1998
- Characterization of Polyesters by Matrix-Assisted Laser Desorption Ionization Mass SpectrometryMacromolecules, 1997
- Matrix-assisted laser desorption ionisation time-of-flight mass spectrometry of synthetic polyestersInternational Journal of Mass Spectrometry and Ion Processes, 1995
- Characterisation of aromatic polyester dendrimers by matrix-assisted laser desorption ionisation mass spectrometryJournal of the Chemical Society, Chemical Communications, 1994
- Laser desorption ionization of proteins with molecular masses exceeding 10,000 daltonsAnalytical Chemistry, 1988