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The preparation of a cabbage reference material for environmental monitoring and food analysis |
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| Authors: | S Korhammer Rolf Herzig Peter Schramel Jorma Kumpulainen Bernd Markert Herbert Muntau Philippe Quevauviller |
| Institution: | Internationales Hochschulinstitut Zittau, Fachgruppe Umweltanalytik, Markt 23, 02763 Zittau, Germany e-mail: korhammer@ihi-zittau.de Tel.: +49-3583-771524 Fax: +49-3583-771534, DE Arbeitsgemeinschaft Bioindikation, Quartiergasse 12, 3013 Berne, Switzerland, CH GSF-Forschungszentrum, Institut für ?kologische Chemie, Postfach 1129, 85758 Neuherberg, Germany, DE Laboratory of Food Chemistry, Agricultural Research Centre of Finland, 31600 Jokioinen, Finland, FI Environment Institute, Joint Research Centre, 21020 Ispra (VA), European Commission, DG Research, Rue de la Loi 200, 1049 Brussels, Belgium, BE |
| Abstract: | Cabbage is frequently used in environmental monitoring and food control, and, hence, cabbage reference materials (RMs) are required for ensuring quality assurance. A cabbage RM was prepared in view of certification of specific elements from the "black list" of high toxicological interest and nutritive importance. All tasks of the RM production (production of the plant material, cutting and freeze-drying, determination of the residual water content, preparation of the RM, homogeneity testing, stability testing, certification measurements) are described in detail. Received: 12 November 1999 / Accepted: 29 January 2000 |
| Keywords: | Production of CRMs Bowen's kale Residual water determination Thallium |
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