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Relative sensitivity coefficients for rare earths in spark-source mass spectrometry
1Ames Laboratory-USAEC and Department of Chemistry, Iowa State University, Ames, Iowa 50010 U.S.A.
This study computed relative sensitivity coefficients for rare earth elements using empirical models. Differences between computed and observed values suggest instrumental discrimination effects in the ion source.
Area of Science:
- Analytical Chemistry
- Mass Spectrometry
Background:
- Empirical models are frequently used to determine relative sensitivity coefficients for rare earth elements.
- Observed values can deviate from model predictions due to instrumental factors.
Purpose of the Study:
- To compute relative sensitivity coefficients for rare earth elements using established empirical models.
- To investigate the reasons for discrepancies between computed and experimentally observed values.
Main Methods:
- Computation of relative sensitivity coefficients for rare earth elements based on literature empirical models.
- Analysis of instrumental discrimination effects within the ion source.
- Correlation of elemental physical constants with observed results.
Main Results:
- Relative sensitivity coefficients for rare earth elements were computed.
- Observed value deviations were attributed to instrumental discrimination effects in the ion source.
- Semi-random computations linking elemental physical constants to observed results supported this hypothesis.
Conclusions:
- Instrumental discrimination effects in the ion source are a significant factor influencing observed values for rare earth elements.
- Empirical models may require adjustments to account for these instrumental effects.
- Further investigation into ion source processes is warranted.
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