期刊
JOURNAL OF APPLIED POLYMER SCIENCE
卷 93, 期 3, 页码 1372-1377出版社
WILEY
DOI: 10.1002/app.20589
关键词
alginates; separation techniques; FTIR; C-13-NMR; gels
A modified method of preparing highly purified polymannuronic acid and polyguluronic acid was developed wherein acid hydrolysis was carried out using oxalic acid and separation was made using the difference of solubility with pH value. The simplified method using FTIR measurement to estimate the M/G ratio of alginate was investigated using Ca or Mn salts of alginate. The developed method appears to offer enhanced accuracy compared to that of previous techniques. (C) 2004 Wiley Periodicals, Inc.
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