期刊名称：Proceedings of the National Academy of Sciences
印刷版ISSN：0027-8424
电子版ISSN：1091-6490
出版年度：1979
卷号：76
期号：3
页码：1218-1222
DOI：10.1073/pnas.76.3.1218
语种：English
出版社：The National Academy of Sciences of the United States of America
摘要：We have fractionated crude porcine heparin to obtain highly active as well as relatively inactive species of molecular weight {approx}7000 with specific anticoagulant activities of 360 and 12 units/mg, respectively. Nitrous acid degradation of both of these polymers yielded a tetrasaccharide fraction, 1{beta
