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  • Guidelines for terms related to chemical speciation and fractionation of elements. Definitions, structural aspects, and methodological approaches (IUPAC Recommendations 2000)


This paper presents definitions of concepts related to speciation of elements, more particularly speciation analysis and chemical species. Fractionation is distinguished from speciation analysis, and a general outline of fractionation procedures is given. We propose a categorisation of species according to isotopic composition of the element, its oxidation and electronic states, and its complex and molecular structure. Examples are given of methodological approaches used for speciation analysis. A synopsis of the methodology of dynamic speciation analysis is also presented.

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Additional information

Authors: TEMPLETON D M, Department of Laboratory Medicine and Pathobiology, University of Toronto (CA);ARIESE F, Department of Analytical Chemistry and Applied Spectroscopy, Vrije Universiteit Amsterdam (NL);CORNELIS R, Laboratory for Analytical Chemistry, Faculty of Sciences, University of Gent (BE);DANIELSSON L-G, Department of Analytical Chemistry, Royal Institute of Technology, Stockholm (SE);MUNTAU H, Environmental Institute, Joint Research Centre, Ispra (IT);VAN LEEUWEN H P, Department of Physical Chemistry and Colloid Science, Wageningen Agricultural University (NL);LOBINSKI R, Department of Chemistry, Warsaw University of Technology, Warszawa (PL)
Bibliographic Reference: An article published in: Pure and Applied Chemistry, Vol. 72, No. 8, pp. 1453-1470, 2000
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