Salt gradient chromatographic separation of chondroitin sulfate disaccharides

Tóth, Gábor and Vékey, Károly and Sugár, Simon and Kovalszky, Ilona and Drahos, László and Turiák, Lilla (2020) Salt gradient chromatographic separation of chondroitin sulfate disaccharides. JOURNAL OF CHROMATOGRAPHY A. pp. 1-6. ISSN 0021-9673

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Abstract

In the present study, we describe the development of a fast, 2-step salt gradient for analysis of chondroitin sulfate disaccharides. Using salt gradients, which is somewhat unusual in HILIC-based separations, provides relatively fast chromatography with excellent sensitivity (15 min cycle time, 10–20 fmol/µL detection, 30–50 fmol/µL quantitation limit), and good linearity. The efficiency of the new method is demonstrated by measuring human tissue slices of healthy, cirrhotic, and cancerous liver samples. Preliminary results show major differences among the quantity and sulfation pattern of the various sample types.

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