Article ID Journal Published Year Pages File Type
9572199 Applied Surface Science 2005 5 Pages PDF
Abstract
The quantification of elements in quadrupole based SNMS is hampered by superpositions of atomic and cluster signals. Moreover, the conventional SNMS data evaluation employs only atomic signals to determine elemental concentrations, which not allows any chemical specifications of the determined elements. Improvements in the elemental quantification and additional chemical information can be obtained from kinetic energy analysis and the inclusion of molecular signals into mass spectra evaluation. With the help of multivariate data analysis techniques, the combined information is used for the first time for a quantitative and chemically distinctive determination of sulfur. The kinetic energy analysis, used to solve the interference of sulfur with O2 at masses 32-34 D, turned out to be highly important for the new type of evaluation.
Related Topics
Physical Sciences and Engineering Chemistry Physical and Theoretical Chemistry
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