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This report describes the preparation of a batch of 1100 vials containing a lyophilized solution, with Cr(VI) and Cr(III) contents simulating levels found in natural or tap water and a total Cr content less than 50 ug/l following the European Community Directive 80/778/EEC, L229/20, D48 on the quality of drinking water. The homogeneity and stability studies and the analytical work performed for the certification of the contents of the Cr(III) and Cr(VI) species and the total Cr content are also described. The report contains all the results and gives the methods used to certify the measured concentrations of Cr(VI) (22.8 ug/l), Cr(III) (26.8 ug/l) and total Cr (49.4 ug/l), after reconstitution in 20 ml. A brief description of the preliminary feasibility study is also given.

Additional information

Authors: VERCOUTERE K, Laboratory of Analytical Chemistry, University of Gent (BE);CORNELIS R, Laboratory of Analytical Chemistry, University of Gent (BE);QUEVAUVILLER P, CEC Bruxelles (BE)
Bibliographic Reference: EUR 17605 EN (1997) 29pp., FS, free of charge
Availability: Available from the DG XII Documentation Centre, European Commission, 200 rue de la Loi, B-1049 Bruxelles (BE), Fax: +32-2-2969823
ISBN: ISBN 92-828-0128-4
Record Number: 199711217 / Last updated on: 1997-10-10
Original language: en
Available languages: en
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