Dedicated to Professor Dr G. Spiteller on the occasion of his 60th birthday Results of initial investigations of matrix-assisted laser desorption (LD) of neutral molecules are presented The investigations were performed using gramicidine D as the test molecule, since both the wavelengtb-dependent LD
Experimental and theoretical studies of matrix-assisted laser desorption of neutral organic molecules
β Scribed by J. Grotemeyer; E.W. Schlag; S.H. Lin
- Publisher
- Elsevier Science
- Year
- 1993
- Tongue
- English
- Weight
- 542 KB
- Volume
- 209
- Category
- Article
- ISSN
- 0009-2614
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β¦ Synopsis
We report the matrix-assisted desorption of gramicidin D dissolved in a platinum matrix. The experimental data are interpreted by using the microcanonical model of laser desorption.
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The angular distribution of desorbed neutral and ionized polyalanine molecules, initially embedded in a matrix of 2,5-dihydroxybenzoic acid, has been measured for the first time. The target was irradiated with a pulsed ultraviolet laser beam (355 nm) incident at an angle of 26 Β°with respect to the t
The mass dependence of the velocity distributions of analyte molecules in matrix-assisted laser desorption is analyzed based on the results of molecular dynamics simulations. The spread of the velocities along the direction of the flow is found to be independent of the mass of the analyte molecules