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Certification of the contents of some trace elements in a coal
Authors:B. Griepink   H. Gonska   A. Colombo  H. Muntau
Affiliation:

a Community Bureau of Reference (BCR), Commission of the European Communities, 200 Rue de la Loi, B-1049, Brussels, Belgium

* Joint Research Centre, Commission of the European Communities, Ispra, Italy

Abstract:The preparation of a coal reference material to be used in trace element analysis is described, as well as the tests to ascertain the homogeneity and stability of the material. Several analytical methods were applied by several laboratories to certify the contents of As, Cd, Cr, Co, F, Mn, Hg, Ni, Pb and Zn. The procedure followed for certification is explained.
Keywords:coal   trace elements   analysis
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