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Postnova Analytics GmbH Rankinestr. 1 86899 Landsberg am Lech, Germany http://www.postnova.com
Contact Mr Bill Breadbury +49 8191 9856880
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Postnova Analytics GmbH

Neue Kopplungstechnik für die umfassende Charakterisierung von Polysacchariden

(PresseBox) (Landsberg, )
Postnova Analytics stellt in einer neuen Applikationsnote eine leistungsfähige Methode vor für die exakte Bestimmung der Molekulargewichtsverteilungen von komplexen Polysaccharidproben (Chitosan). Es wird die Asymmetrische Fluss Feld-Fluss Fraktionierung (AF4) verwendet, gekoppelt mit Mehrwinkel-Lichtstreuung (MALS) und Brechungsindexdetektion (RI).

Die herkömmliche Technologie der Wahl für die Charakterisierung von Polysacchariden ist die Größenausschlusschromatographie (GPC), auch als Size Exclusion Chromatography (SEC), bezeichnet. Allerdings benötigt die Größenausschlusschromatographie für sehr komplexe Polysaccharide wie z. B. Chitosanproben eine aufwendige Probenvorbereitung. Die Proben müssen vor der Messung filtriert werden um störende, größere Aggregatanteile in der Probe zu entfernen. Dies ist zum einen sehr zeitaufwendig, und weiterhin wird durch mfq Ugupwbiskhtbfsncxk kwo Ddgv mis Vxvqs funjqrmr lyu ufqam ufd rmctkwaxoykla BDW/KKW-Pvtjtxe nuoci jnri oycmsqhnbe spd.

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