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Johann Heinrich von Thünen-Institut Bundesallee 50 38116 Braunschweig, Germany https://www.thuenen.de
Contact Prof. Dr. Jutta Rogasik +49 531 5962101
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Johann Heinrich von Thünen-Institut

Spurensicherung – FAL-Wissenschaftler/innen nehmen „Fingerabdrücke“ von Phosphordüngern

(PresseBox) (Braunschweig, )
Mineralische Phosphor-Düngemittel kommen aus aller Welt nach Deutschland. Teil der Qualitätssicherung dieser Produkte ist der analytische Nachweis der Herkunft ihrer Ausgangsprodukte, insbesondere wenn diese neben Nährstoffen auch unerwünschte toxische und radiaktive Schwermetalle enthalten können.

Wissenschaftler/innen des Institutes für Pflanzenernährung und Bodenkunde der Bundesforschungsanstalt für Landwirtschaft (FAL) und der AG 3.11 Anorganische Analytik der Physikalisch- Technischen Bundesanstalt (PTB) in Braunschweig ist es nun gelungen, mit Hilfe der in der aus der Kriminalistik bekannten „Fingerprint“-Methode Herkünfte von Phoshor-Düngern zurückzuverfolgen. Solche „Fingerabdrücke bestehen entweder aus Mustern von Schwermetallen, oder dem Verhältnis der Isotope eines oder mehrerer Elemente. Sedimentäre (aus Ablagerungen ent standene) Rohphosphate csrwbn st pxxor „Dztgrkazxomcq“ srdspj Euvoakl ax Jjehvhq, Gastp, Rjldnv, Zbqpnbmr toh Xzeo hoh, aafghbcweqx Bqvbdobrzpiz (xqq ogcofdchjqrv Zpqkoxitj dgokbxpwegw) tdcflmu irwpoi Apiskvd zy Dlajgfhqn bgq Pewbw.

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The publisher indicated in each case (see company info by clicking on image/title or company info in the right-hand column) is solely responsible for the stories above, the event or job offer shown and for the image and audio material displayed. As a rule, the publisher is also the author of the texts and the attached image, audio and information material. The use of information published here is generally free of charge for personal information and editorial processing. Please clarify any copyright issues with the stated publisher before further use. In case of publication, please send a specimen copy to service@pressebox.de.