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Journals

Simultaneous Determination of Inorganic Mercury, Methylmercury, and Total Mercury Concentrations in Cryogenic Fresh-Frozen and Freeze-dried Biological Reference Materials

Author(s)
David Point, William C. Davis, J. I. Garcia Alonso, Mathilde Monperrus, Steven J. Christopher, O.F. X. Donard, Paul R. Becker, Stephen A. Wise
A double spike speciated isotope dilution (DS-SID) reaction model was developed to study and correct for the inadvertent transformations affecting methylmercury...

Optical-to-microwave frequency comparison with fractional uncertainty of 10-15

Author(s)
Jason Stalnaker, Scott A. Diddams, Tara M. Fortier, K Kim, Leo W. Hollberg, James C. Bergquist, Wayne M. Itano, Marie Delaney, Luca Lorini, Windell Oskay, Thomas P. Heavner, Steven R. Jefferts, Filippo Levi, Thomas E. Parker, Jon H. Shirley
We report the technical aspects of the optical-to-microwave comparison for our recent measurements of the optical frequency of the mercury single-ion frequency...
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