Abstract
The use of resonance ionization spectroscopy (RIS) for single-atom detection has generated widespread interest. Use of the resonance ionization effect in isotope-ratio mass spectrometry promises to overcome the problem of isobaric interference encountered for a variety of samples. The present work concerns the measurement of Nd and Sm isotope ratios in binary mixtures without any chemical separation. High selectivity is obtained. as shown by the preliminary results. Quantitative data are given to demonstrate the analytical potential of the technique.
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