UV-MALDI-TOF MS analysis of carbohydrates. reviewing comparative studies performed using nor-harmane and classical UV-MALDI matrices

In an effort to gain an understanding of the processes governing matrix-assisted ultraviolet laser desorption/ionization (UV-MALDI), we made a direct comparison of the mass spectra (MS) of carbohydrates (neutral cyclic and acyclic, sulfated and acid mono- and polysaccharides) by using nor-harmane an...

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Autor principal: Erra Balsells, Rosa
Publicado: 2008
Materias:
Carrageenan
Nor-harmane
Pectin
Polysaccharides
Uv-maldi matrix
UVMALDI-TOF MS
Xylan
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_1880554X_v46_n2_p65_ErraBalsells
http://hdl.handle.net/20.500.12110/paper_1880554X_v46_n2_p65_ErraBalsells
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_1880554X_v46_n2_p65_ErraBalsells
record_format dspace
spelling paper:paper_1880554X_v46_n2_p65_ErraBalsells2025-07-30T19:05:57Z UV-MALDI-TOF MS analysis of carbohydrates. reviewing comparative studies performed using nor-harmane and classical UV-MALDI matrices Erra Balsells, Rosa Carrageenan Nor-harmane Pectin Polysaccharides Uv-maldi matrix UVMALDI-TOF MS Xylan In an effort to gain an understanding of the processes governing matrix-assisted ultraviolet laser desorption/ionization (UV-MALDI), we made a direct comparison of the mass spectra (MS) of carbohydrates (neutral cyclic and acyclic, sulfated and acid mono- and polysaccharides) by using nor-harmane and several classical matrices (gentisic acid (GA); 2,4,6trihydroxixyacetophenone (THAP); among others) as UV-MALDI matrices in positive and negative ion modes in linear, reflectron and post-source decay (PSD) modes. The peculiarity of norharmane is that behaves better as matrix than GA in negative ion mode. Because the initiation of the UV-MALDI process is a photochemical reaction (matrix +hv (337 or 355 nm)→ matrix*), the acid-base character of nor-harmane in the ground and the lower electronic excited singlet state, together with other photophysical properties such as prompt heat release to the medium are discussed in brief. Excellent results obtained with cyclodextrins with nor-harmane allow us to propose these analyte-matrix systems for UV-MALDI-TOF MS calibration in positive and negative ion modes in linear, reflectron and PSD modes. Fil:Erra-Balsells, R. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2008 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_1880554X_v46_n2_p65_ErraBalsells http://hdl.handle.net/20.500.12110/paper_1880554X_v46_n2_p65_ErraBalsells
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Carrageenan
Nor-harmane
Pectin
Polysaccharides
Uv-maldi matrix
UVMALDI-TOF MS
Xylan
spellingShingle Carrageenan
Nor-harmane
Pectin
Polysaccharides
Uv-maldi matrix
UVMALDI-TOF MS
Xylan
Erra Balsells, Rosa
UV-MALDI-TOF MS analysis of carbohydrates. reviewing comparative studies performed using nor-harmane and classical UV-MALDI matrices
topic_facet Carrageenan
Nor-harmane
Pectin
Polysaccharides
Uv-maldi matrix
UVMALDI-TOF MS
Xylan
description In an effort to gain an understanding of the processes governing matrix-assisted ultraviolet laser desorption/ionization (UV-MALDI), we made a direct comparison of the mass spectra (MS) of carbohydrates (neutral cyclic and acyclic, sulfated and acid mono- and polysaccharides) by using nor-harmane and several classical matrices (gentisic acid (GA); 2,4,6trihydroxixyacetophenone (THAP); among others) as UV-MALDI matrices in positive and negative ion modes in linear, reflectron and post-source decay (PSD) modes. The peculiarity of norharmane is that behaves better as matrix than GA in negative ion mode. Because the initiation of the UV-MALDI process is a photochemical reaction (matrix +hv (337 or 355 nm)→ matrix*), the acid-base character of nor-harmane in the ground and the lower electronic excited singlet state, together with other photophysical properties such as prompt heat release to the medium are discussed in brief. Excellent results obtained with cyclodextrins with nor-harmane allow us to propose these analyte-matrix systems for UV-MALDI-TOF MS calibration in positive and negative ion modes in linear, reflectron and PSD modes.
author Erra Balsells, Rosa
author_facet Erra Balsells, Rosa
author_sort Erra Balsells, Rosa
title UV-MALDI-TOF MS analysis of carbohydrates. reviewing comparative studies performed using nor-harmane and classical UV-MALDI matrices
title_short UV-MALDI-TOF MS analysis of carbohydrates. reviewing comparative studies performed using nor-harmane and classical UV-MALDI matrices
title_full UV-MALDI-TOF MS analysis of carbohydrates. reviewing comparative studies performed using nor-harmane and classical UV-MALDI matrices
title_fullStr UV-MALDI-TOF MS analysis of carbohydrates. reviewing comparative studies performed using nor-harmane and classical UV-MALDI matrices
title_full_unstemmed UV-MALDI-TOF MS analysis of carbohydrates. reviewing comparative studies performed using nor-harmane and classical UV-MALDI matrices
title_sort uv-maldi-tof ms analysis of carbohydrates. reviewing comparative studies performed using nor-harmane and classical uv-maldi matrices
publishDate 2008
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_1880554X_v46_n2_p65_ErraBalsells
http://hdl.handle.net/20.500.12110/paper_1880554X_v46_n2_p65_ErraBalsells
work_keys_str_mv AT errabalsellsrosa uvmalditofmsanalysisofcarbohydratesreviewingcomparativestudiesperformedusingnorharmaneandclassicaluvmaldimatrices
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