Graphite-assisted laser desorption/ionization

P. Dietemann, M.J. Edelmann, C. Meisterhans, C. Pfeiffer, S. Zumbuhl, R. Knochenmuss, and R. Zenobi, Artificial Photoaging of Triterpenes Studied by Graphite assisted Laser Desorption/ Ionization Mass Spectrometry, Helv. Chim. Acta, 83, 1766 1777 (2000). [Pg.162]

Other MS based analytical approaches have occasionally been applied to ancient resin samples, in particular for paint varnishes. Such techniques include FABS (fast atom bombardment mass spectrometry) [35], MALDI (matrix assisted laser desorption-ionization mass spectrometry) and GALDI (graphite assisted laser desorption-ionization mass spectrometry) [36 38]. [Pg.218]

S. Zumbuhl, R. Knochenmuss, S. Wulfert, F. Dubois, J. M. Dale, R. Zenobi, A graphite assisted laser desorption/ionization study of light induced aging in triterpene dammar and mastic varnishes, Anal. Chem., 70, 707 711 (1998). [Pg.235]

Organic acids, flavonoids, glucose, fructose, sucrose, fatty acids Apples and strawberries Graphite-assisted laser desorption/ionization mass spectrometry (GALDI-IMS) 96... [Pg.615]

GALDI-IMS graphite-assisted laser desorption/ionization mass spectrometry... [Pg.624]

Cha, S.W. et al., Colloidal graphite-assisted laser desorption/ionization mass spectrometry and MS" of small molecules. 1. Imaging of cerebrosides directly from rat brain tissue, Anal. Chem., 79, 2373, 2007. [Pg.353]

Zhang, H., Cha, S., Yeung, E.S., (2007) Colloidal graphite-assisted laser desorption/ionization MS and MS(n) of small molecules. 2. Direct profiling and MS imaging of small metabolites from fruits. Analytical Chemistry, 79, 6575-6584. [Pg.83]

For example, by using the nanostructure-initiator mass spectrometry, Patti and colleagues [130] detected intact cholesterol and its derivative molecules in situ to provide the first images of brain sterol localization in a knockout mouse model of 7-dehydrocholesterol reductase. Other nanomaterials (e.g silver nanoparticles) have also been used to analyze lipids directly from tissue samples [133], From a thin film of colloidal graphite on rat brain tissue, direct lipid profiling was performed by graphite-assisted laser desorption/ionization mass spectrometry, which allowed to detect 22 HexCer species, whereas only eight HexCer species are detected with MALDI-TOF/MS [132], Chemically selective analysis for HexCer and ST species was successfully obtained. [Pg.78]

Dieiemann, P. Edelmann, M. Meisterhans, C. Peeiefer, C. Zumbuhl, S. Knochenmuss, R. Zenobi, R. Artificial photoaging of triterpenes studied by graphite-assisted laser desorption/ionization mass spectrometry. Heh. Chim. Acta 2000, 83, 1766-1776. [Pg.240]

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