论文信息 - Primary methods for the measurement of amount of substance

Primary methods for the measurement of amount of substance

Primary methods of measurement play an important role in metrology because they provide the essential first link in the chain of traceability from the abstract definition of a unit of the International System of Units (SI) to its practical use in measurement. A definition of a primary method of measurement has been developed by the Consultative Committee for Amount of Substance (CCQM) that distinguishes between those methods that measure a quantity directly and those that measure the ratio of two quantities. Methods that do not fulfil the definition of being primary also play an important role in measuring amount of substance. In some cases, it is appropriate to refer to these as secondary methods.

Martin J T Milton | Terry Quinn | M. Milton | T. Quinn

[1] G. Dube,et al. Measurement standards and the general problem of reference points in chemical analysis , 1997 .

[2] J. D. Fassett,et al. Protocol for isotope dilution using inductively coupled plasma-mass spectrometry (ICP-MS) for the determination of inorganic elements , 1997 .

[3] H. Preston‐Thomas,et al. The International Temperature Scale of 1990 (ITS-90) , 1990 .

[4] H. Preston‐Thomas,et al. The International Temperature Scale of 1990 (ITS-90) , 1990 .

[5] T. Quinn. Primary methods of measurement and primary standards , 1997 .

[6] Tomas Tamberg,et al. Certification of Reference Materials , 2000 .

[7] T. Cvitaš,et al. Quantities describing compositions of mixtures , 1996 .

[8] M. L. Mcglashan,et al. Amount of Substance and the mole , 1977 .

[9] A. Hulanicki,et al. Absolute methods in analytical chemistry (Technical Report) , 1995 .

[10] Martin J T Milton,et al. Uncertainty in SI-traceable measurements of amount of substance by isotope dilution mass spectrometry , 2000 .

[11] P. Becker,et al. The Role of NA in the SI: An Atomic Path to the Kilogram , 1994 .

[12] A. Colclough. Systematic Errors in Primary Acoustic Thermometry in the Range 2-20 K , 1973 .

[13] Klaus Danzer,et al. Guidelines for calibration in analytical chemistry. Part I. Fundamentals and single component calibration (IUPAC Recommendations 1998) , 1998 .