Sample-matrix effects in infrared laser neutral desorption, multiphoton-ionization mass spectrometry

Autor:	Josef Lindner, Edward W. Schlag, Jürgen Grotemeyer, R. C. Beavis
Rok vydání:	1988
Předmět:	Matrix (chemical analysis) MALDI imaging Matrix-assisted laser desorption electrospray ionization Chemistry Field desorption Desorption Far-infrared laser Analytical chemistry General Physics and Astronomy Physical and Theoretical Chemistry Mass spectrometry Soft laser desorption
Zdroj:	Chemical Physics Letters. 146:310-314
ISSN:	0009-2614
DOI:	10.1016/0009-2614(88)87450-5
Popis:	Sample-matrix effects in laser evaporation of intact neutral molecules (LEIM) prior to multiphoton ionization mass spectrometry (MUPI MS) are studied. The results show that a strong influence exists in adding matrix materials to the sample upon the desorption step. Using sugars as matrix leads to a suppression of pyrolysis products in small peptides by the laser desorption. As a result mass spectrometric signals due to the pyrolysis products are avoided.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::ade9d87a8de5982ca31ee88714e1b437 https://doi.org/10.1016/0009-2614(88)87450-5 Zobrazit plný text záznamu