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Simplified method for estimation of composition of alginates by FTIR
Author(s) -
Sakugawa Keiju,
Ikeda Atsushi,
Takemura Akio,
Ono Hirokuni
Publication year - 2004
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.20589
Subject(s) - oxalic acid , fourier transform infrared spectroscopy , hydrolysis , solubility , composition (language) , materials science , chemistry , nuclear chemistry , chromatography , polymer chemistry , chemical engineering , organic chemistry , engineering , linguistics , philosophy
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. © 2004 Wiley Periodicals, Inc. J Appl Polym Sci 93: 1372–1377, 2004