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Acid-base and optical properties of heparin

Authors
Publisher
Elsevier Inc.
Publication Date
Volume
78
Issue
2
Identifiers
DOI: 10.1016/0006-291x(77)90222-4

Abstract

Abstract The apparent pKa value, 5.1, of the carboxyl group of iduronic acid moiety in heparin was determined by circular dichroic and potentiometric titrations. The variations of circular dichroism and optical rotatory dispersion of heparin solution with pH are attributed to the acid-base properties of the carboxyl group rather than to conformational transition. The molecular properties of heparin are discussed in terms of the structure of the molecule.

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