Matrix-assisted laser desorption and electrospray ionization mass spectrometry of carminic acid isolated from cochineal

Carminic acid, isolated from cochineal, was analyzed by matrix-assisted laser desorption/ionization (MALDI) and electrospray mass spectrometry (ESI-MS). Application of both techniques to the analysis of carminic acid suspended in linseed oil and applied to a piece of canvas, demonstrated the ability...

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Detalles Bibliográficos
Autores principales: Maier, Marta Silvia, Seldes, Alicia Marta
Publicado: 2004
Materias:
Carminic acid
Cochineal
Electrospray ionization
Matrix-assisted laser desorption
carminic acid
linseed oil
analytic method
article
electrospray mass spectrometry
isolation and purification
matrix assisted laser desorption ionization time of flight mass spectrometry
painting
sample
separation technique
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_13873806_v232_n3_p225_Maier
http://hdl.handle.net/20.500.12110/paper_13873806_v232_n3_p225_Maier
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
Descripción
Sumario:Carminic acid, isolated from cochineal, was analyzed by matrix-assisted laser desorption/ionization (MALDI) and electrospray mass spectrometry (ESI-MS). Application of both techniques to the analysis of carminic acid suspended in linseed oil and applied to a piece of canvas, demonstrated the ability of MALDI and ESI-MS to identify this organic dye in a mixture as those used in easel painting. © 2003 Elsevier B.V. All rights reserved.

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