The Experts below are selected from a list of 6828 Experts worldwide ranked by ideXlab platform
S Valkiers - One of the best experts on this subject based on the ideXlab platform.
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The chemical preparation and characterization of specimens for "absolute" measurements of the molar Mass of an element, exemplified by silicon, for redeterminations of the Avogadro constant
Metrologia, 1995Co-Authors: P. De Bièvre, G. Lenaers, T. J. Murphy, H. S. Peiser, S ValkiersAbstract:The chemical steps needed to prepare specimens for "absolute" Atomic-weight [(mean) Relative Atomic Mass] determinations are outlined and discussed in detail for the Atomic weight of silicon, Ar (Si), as recently measured for a redetermination of the Avogadro constant. The estimated combined uncertainties arising from the chemical procedures in that Ar (Si) measurement are shown to be almost equal to those from the associated Mass-spectrometric measurements.
Ma Bai-xiang - One of the best experts on this subject based on the ideXlab platform.
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Study on Prediction of Relative Atomic Mass of Number 113 and 114 Chemical Elements
Chemistry World, 2007Co-Authors: Ma Bai-xiangAbstract:A mathematical expression based on the Newton interpolation of difference coefficient and calculus of differences was described for the prediction of Relative Atomic Mass. In its application to the calculation of Relative Atomic Mass of elements with Atomic numbers from 113 to 114, combining residual formula correction highly precise results were obtained. The results were in good consistency with the experimental 278 and 289 values given in the references~ [5,7] .
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STUDY ON THE NUMERICAL CALCULATION OF Relative Atomic Mass
Physical Testing and Chemical Analysis, 2005Co-Authors: Ma Bai-xiangAbstract:A mathematical expression based on the natural cubic interpolating spline was described for the calculation of Relative Atomic Mass.All the 2nd order continuous differentiable subsection tri-multinomial functions passed through the data points,thus giving the smoothest function of all data points and the exclusive function with minimum total curvature.In its application to the calculation of Relative Atomic Mass of elements with Atomic numbers from 1 to 112,results obtained by this calculation method were in good consistency with the values given as printed in the Atomic Mass table of the year 1999.
P. De Bièvre - One of the best experts on this subject based on the ideXlab platform.
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The chemical preparation and characterization of specimens for "absolute" measurements of the molar Mass of an element, exemplified by silicon, for redeterminations of the Avogadro constant
Metrologia, 1995Co-Authors: P. De Bièvre, G. Lenaers, T. J. Murphy, H. S. Peiser, S ValkiersAbstract:The chemical steps needed to prepare specimens for "absolute" Atomic-weight [(mean) Relative Atomic Mass] determinations are outlined and discussed in detail for the Atomic weight of silicon, Ar (Si), as recently measured for a redetermination of the Avogadro constant. The estimated combined uncertainties arising from the chemical procedures in that Ar (Si) measurement are shown to be almost equal to those from the associated Mass-spectrometric measurements.
G. Lenaers - One of the best experts on this subject based on the ideXlab platform.
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The chemical preparation and characterization of specimens for "absolute" measurements of the molar Mass of an element, exemplified by silicon, for redeterminations of the Avogadro constant
Metrologia, 1995Co-Authors: P. De Bièvre, G. Lenaers, T. J. Murphy, H. S. Peiser, S ValkiersAbstract:The chemical steps needed to prepare specimens for "absolute" Atomic-weight [(mean) Relative Atomic Mass] determinations are outlined and discussed in detail for the Atomic weight of silicon, Ar (Si), as recently measured for a redetermination of the Avogadro constant. The estimated combined uncertainties arising from the chemical procedures in that Ar (Si) measurement are shown to be almost equal to those from the associated Mass-spectrometric measurements.
H. S. Peiser - One of the best experts on this subject based on the ideXlab platform.
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The chemical preparation and characterization of specimens for "absolute" measurements of the molar Mass of an element, exemplified by silicon, for redeterminations of the Avogadro constant
Metrologia, 1995Co-Authors: P. De Bièvre, G. Lenaers, T. J. Murphy, H. S. Peiser, S ValkiersAbstract:The chemical steps needed to prepare specimens for "absolute" Atomic-weight [(mean) Relative Atomic Mass] determinations are outlined and discussed in detail for the Atomic weight of silicon, Ar (Si), as recently measured for a redetermination of the Avogadro constant. The estimated combined uncertainties arising from the chemical procedures in that Ar (Si) measurement are shown to be almost equal to those from the associated Mass-spectrometric measurements.