✦ LIBER ✦

First application of thermal vapor deposition method to matrix-assisted laser desorption ionization mass spectrometry: determination of molecular mass of bis(p-methyl benzylidene) sorbitol

✍ Scribed by Sung H. Kim; Chul M. Shin; Jong S. Yoo

Publisher: John Wiley and Sons
Year: 1998
Tongue: English
Weight: 232 KB
Volume: 12
Category: Article
ISSN: 0951-4198
DOI: 10.1002/(sici)1097-0231(19980615)12:11<701::aid-rcm223>3.0.co;2-b

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✦ Synopsis

A thermal vapor deposition method for crystallization of insoluble analytes with matrix is established as a new sample preparation method for Matrix-assisted laser desorption/ionization mass spectrometry (MALDI-MS). A mixture of mono, bis and tris(p-methyl benzylidene) sorbitols was incorporated into microcrystals of ferulic acid, which was confirmed by confocal micrographs. Molecular masses of sorbitol derivatives were determined in this way by MALDI-MS without thermal decomposition.

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