TETRABORATE CONCENTRATION ON MORGAN-ELSON REACTION AND AN IMPROVED METHOD FOR HEXOSAMINE DETERMINATION

被引:18
作者
OGUCHI, M
OGUCHI, MS
机构
[1] Department of Biochemistry, St. Marianna University School of Medicine, 213, 2095 Sugao, Takatsu-ku, Kawasaki, Japan
关键词
D O I
10.1016/0003-2697(79)90163-5
中图分类号
Q5 [生物化学];
学科分类号
071010 ; 081704 ;
摘要
Effect of tetraborate concentration on the determination of hexosamine by Morgan-Elson color reaction according to Levvy and McAllan [(1959) Biochem. J., 73, 127-232] was studied using the three different preparations of the tetraborate solution. The concentration of the previous report during the chromogen formation (0.29 m) was too high comparing to the optimum concentration of the present experiment (0.175 m). An improved method is now proposed which is excellent on the ground of convenience and reproducibility; same readings were obtained with the tetraborate solution from various preparations which were stable at least for two years. It showed same molar extinction coefficient as obtained before. © 1979.
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页码:433 / 437
页数:5
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