Abstract
A new method of ultrasensitive isotope trace analysis has been developed. This method, based on the technique of laser manipulation of neutral atoms, has been used to count individual 85Kr and 81Kr atoms present in a natural krypton gas sample with isotopic abundances in the range of 10−11 and 10−13, respectively. The method is free of contamination from other isotopes and elements, and can be applied to many different isotope tracers for a wide range of applications.
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Bailey, K., Chen, C., Du, X. et al. Atom trap trace analysis. Hyperfine Interactions 127, 515–518 (2000). https://doi.org/10.1023/A:1012698508113
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DOI: https://doi.org/10.1023/A:1012698508113