The Library
SUPPRESSION OF MATRIX IONS IN ULTRAVIOLET-LASER DESORPTION - SCANNING ELECTRON-MICROSCOPY AND RAMAN-SPECTROSCOPY OF THE SOLID SAMPLES
Tools
UNSPECIFIED (1992) SUPPRESSION OF MATRIX IONS IN ULTRAVIOLET-LASER DESORPTION - SCANNING ELECTRON-MICROSCOPY AND RAMAN-SPECTROSCOPY OF THE SOLID SAMPLES. ORGANIC MASS SPECTROMETRY, 27 (3). pp. 188-194. ISSN 0030-493X.
Research output not available from this repository.
Request-a-Copy directly from author or use local Library Get it For Me service.
Abstract
Suppression of low-mass ion peaks in matrix-assisted ultraviolet laser desorption has been found to occur at low matrix-to-analyte molar ratios when using nicotinic acid as matrix, independent of the angle of illumination. Microscopic Raman scattering spectroscopy has been employed to investigate the matrix-analyte solid-state composition. The matrix-to-analyte molar ratios employed in preparing the solutions are reliable guides to the relative amounts of matrix and analyte molecules in the solid crystals, given the method of sample preparation employed involving drying under a stream of nitrogen. A qualitative model based on the proton supply-and-demand argument is tentatively proposed to explain the suppression phenomenon.
Item Type: | Journal Article | ||||
---|---|---|---|---|---|
Subjects: | Q Science > QD Chemistry Q Science > QC Physics |
||||
Journal or Publication Title: | ORGANIC MASS SPECTROMETRY | ||||
Publisher: | JOHN WILEY & SONS LTD | ||||
ISSN: | 0030-493X | ||||
Official Date: | March 1992 | ||||
Dates: |
|
||||
Volume: | 27 | ||||
Number: | 3 | ||||
Number of Pages: | 7 | ||||
Page Range: | pp. 188-194 | ||||
Publication Status: | Published |
Data sourced from Thomson Reuters' Web of Knowledge
Request changes or add full text files to a record
Repository staff actions (login required)
View Item |