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Heparin refers to a group of the body's own unbranched glucosaminoglycans (polysaccharides) that have an inhibitory effect on the blood coagulation cascade. The monomer units of these polysaccharides are glucosamine, glucuronic acid and iduronic acid. In many cases, they carry sulphate groups on the oxygen and nitrogen atoms of the side chains. The molecular weight of heparin is approximately between 4000 and 50000 g/mol. The figure opposite shows a structural section of a heparin molecule.
Due to the many functional groups present in the molecule, in particular the negatively charged sulphate or carboxylate groups, heparin is a very polar molecule which exhibits good solubility properties in water. Suitable separation techniques therefore include ion exchange chromatography and gel filtration chromatography (SEC with aqueous eluents). Below you will find some application examples.
Tosoh-Bioscience™ TSKgel G2000SWXL (5 µm, 7.8x300 mm, P/N: 0008540)
Analyte: Low molecular weight heparin
Shodex™ OHpak SB-804 HQ (10 µm, 8.0x300 mm, P/N: F6429103)
Analyte: Heparin
Shodex™ OHpak SB-806M HQ (13 µm, 8.0x300 mm, P/N: F6429106)
Analyte: Heparin
Shodex™ OHpak LB-806M (13 µm, 8.0x300 mm, P/N: F6429202)
Analyte: Heparin
Sepax™ heparin analysis with various SEC and SAX columns
Analytes: heparin, OSCS
Sepax™ Glycomix SAX (4.6x250 mm, P/N: 901665-4625)
Analytes: Heparin, OSCS
Thermo Scientific™ Dionex IonPac AS11-HC (4 µm, 2.0x250 mm, P/N: 052961)
Analytes: Heparin, OSCS
Thermo Scientific™ Dionex CarboPac PA20 (6.5 µm, 3.0x150 mm, P/N: 060142)
Analytes: Heparin, Galactosamine, Glucosamine
Imtakt™ Presto FF-C18 (2 µm, 4.6x250 mm, P/N: 901665-4625)
Analytes: heparin, chondroitin sulphuric acid, dermatan sulphuric acid
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