ISSN:
0951-4198
Keywords:
Chemistry
;
Analytical Chemistry and Spectroscopy
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Physics
Notes:
A number of commercial β-lactam antibiotics are investigated by means of cesium ion (Cs+) bombardment in the kinetic energy range 2-35 keV. The relative intensities of the protonated molecules, as well as some of the major fragment ions, are monitored as a function of the Cs+ kinetic energy. The dependence of the intact protonated molecule:fragment ion ratios on the primary-ion kinetic energy is evident in some of the spectra investigated. An attempt is made to interpret these results in terms of existing secondary-ion mass spectrometry data which have been obtained in a different kinetic energy range.
Additional Material:
3 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/rcm.1290061116
