Spectrophotometric determination of glucosamine and its analogous amino sugars with o-hydroxyhydroquinonephthalein and palladium(II).

نویسندگان

  • Takako Yamaguchi
  • Mayumi Inoue
  • Kanako Miyachi
  • Hiroshi Tominaga
  • Yoshikazu Fujita
چکیده

A simple and highly sensitive spectrophotometric method for the determination of glucosamine and its analogous amino sugars was established based on fading of the palladium(II)-o-hydroxyhydroquinonephthalein-hexadecyltrimethylammonium complex. In the determination of glucosamine, Beer's law is obeyed in the range of 0.02 - 0.18 microg ml(-1), with an effective molar absorptivity at 630 nm and the relative standard deviation being 8.4 x 10(5) dm3 mol(-1) cm(-1) and 1.08% (n = 10). This method is about 70-times more sensitive than the Elson-Morgan method. The method was successfully applied to the assay of glucosamine in actual samples.

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عنوان ژورنال:
  • Analytical sciences : the international journal of the Japan Society for Analytical Chemistry

دوره 20 2  شماره 

صفحات  -

تاریخ انتشار 2004