Valkiers S, De Bièvre P, Lenaers G, Peiser H S
Central Bureau for Nuclear Measurements, Commission of the European Communities, Joint Research Centre, B-2440, Geel, Belgium.
University of Antwerpen, Chemistry Department, B-2610 Antwerpen-Wilrijk, Belgium.
J Res Natl Inst Stand Technol. 1991 Sep-Oct;96(5):617-619. doi: 10.6028/jres.096.038.
In a series of gas mass-spectrometric measurements performed near the highest attainable accuracy, samples from two highly homogeneous batches of silicon crystals and silica powder were compared directly with a synthetic mixture of the three stable isotopes of silicon. Thereby, this work not only established the "absolute" atomic weight of these batches, but also makes portions of these batches available as an Isotopie Reference Material for accurate isotopic abundance measurements in geochemical and other isotope-abundance studies of silicon.
在一系列以近乎可达到的最高精度进行的气体质谱测量中，将来自两批高度均匀的硅晶体和二氧化硅粉末的样品直接与硅的三种稳定同位素的合成混合物进行了比较。由此，这项工作不仅确定了这些批次的“绝对”原子量，还使这些批次的部分样品可作为同位素参考物质，用于硅的地球化学和其他同位素丰度研究中的精确同位素丰度测量。
