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This report describes the homogeneity study and the analytical work performed for the certification of the contents of Al, Ca, K and Mg in beech leaves. The report contains all the results and gives the methods used to certify the contents (mass fractions expressed as mg/g on a dry matter basis) of the specified elements. The certified values and their uncertainties are respectively for Al: 0.435 +/- 0.004, Ca: 5.30 +/- 0.04, K: 9.94 +/- 0.20 and for Mg: 0.878 +/- 0.017.

Additional information

Authors: MAIER E, European Commission, Bruxelles (BE);VAN RENTERGHEM D, European Commission, Bruxelles (BE);GRIEPINK B, European Commission, Bruxelles (BE);VALCARCEL M, University of Cordoba, Department of Analytical Chemistry (ES);VERCOUTERE K, Delft University of Technology, Interfaculty Reactor Institute (NL)
Bibliographic Reference: EUR 15020 EN (1993) 22 pp., MF, ECU 4
Availability: (2)
ISBN: ISBN 1 870965 12 4
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