Certified reference materials for the quality control of fluorine in coal, fly ash and clay |
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| Authors: | P Quevauviller H Staak D Loenen W Lingerak and B Griepink |
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| Institution: | (1) Measurements and Testing Programme (BCR), European Commission, Rue de la Loi 200, B-1049 Brussels, Belgium;(2) EMA N.V., Utrechtsweg 310, NL-6812 Arnhem, Netherlands;(3) Netherlands Energy Foundation (ECN), P.O. Box 1, NL-1755 ZG, Westerduinweg 3, Petten, Netherlands;(4) Present address: PHARE Programme, European Commission, Rue de la Loi 200, B-1049 Brussels, Belgium |
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| Abstract: | A group of laboratories has worked in various intercomparisons in the frame of the BRC-programme (European Commission) to improve their methods for fluorine determination, especially for coal analysis. These exercises allowed to detect and remove sources of error. Methods were improved to such an extent that the certification of fluorine and chlorine in different materials could be envisaged and the BCR consequently decided to produce coal, fly ash and clay materials certified for their F content. In addition, chlorine was certified in the fly ash CRM. |
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