Mass-spectrometric methods for determining isotopic composition and molar mass traceable to the SI, exemplified by improved values for nitrogen

Author： Bievre P. De   Valkiers S.   Peiser H. S.   Taylor P. D. P.   Hansen P.  

Publisher： IOP Publishing

ISSN： 0026-1394

Source： Metrologia, Vol.33, Iss.5, 1996-10, pp. : 447-455

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