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Mass spectrometric analysis of low molecular mass polyesters by laser desorption/ionization on porous silicon.
J Mass Spectrom. 2004 Aug; 39(8):961-5.JM

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 alpha-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.

Authors+Show Affiliations

Department of Applied Chemistry, Kansai University, 3-3-35 Yamatecho, Suita, Osaka 564-8680, Japan. arak@ipcku.kansai-u.ac.jpNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Comparative Study
Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

15329848

Citation

Arakawa, Ryuichi, et al. "Mass Spectrometric Analysis of Low Molecular Mass Polyesters By Laser Desorption/ionization On Porous Silicon." Journal of Mass Spectrometry : JMS, vol. 39, no. 8, 2004, pp. 961-5.
Arakawa R, Shimomae Y, Morikawa H, et al. Mass spectrometric analysis of low molecular mass polyesters by laser desorption/ionization on porous silicon. J Mass Spectrom. 2004;39(8):961-5.
Arakawa, R., Shimomae, Y., Morikawa, H., Ohara, K., & Okuno, S. (2004). Mass spectrometric analysis of low molecular mass polyesters by laser desorption/ionization on porous silicon. Journal of Mass Spectrometry : JMS, 39(8), 961-5.
Arakawa R, et al. Mass Spectrometric Analysis of Low Molecular Mass Polyesters By Laser Desorption/ionization On Porous Silicon. J Mass Spectrom. 2004;39(8):961-5. PubMed PMID: 15329848.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Mass spectrometric analysis of low molecular mass polyesters by laser desorption/ionization on porous silicon. AU - Arakawa,Ryuichi, AU - Shimomae,Yukiyasu, AU - Morikawa,Hidemi, AU - Ohara,Kazuma, AU - Okuno,Shoji, PY - 2004/8/27/pubmed PY - 2004/9/29/medline PY - 2004/8/27/entrez SP - 961 EP - 5 JF - Journal of mass spectrometry : JMS JO - J Mass Spectrom VL - 39 IS - 8 N2 - 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 alpha-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. SN - 1076-5174 UR - https://www.unboundmedicine.com/medline/citation/15329848/Mass_spectrometric_analysis_of_low_molecular_mass_polyesters_by_laser_desorption/ionization_on_porous_silicon_ L2 - https://doi.org/10.1002/jms.631 DB - PRIME DP - Unbound Medicine ER -