Concentrations of free Mg2+, Ca2+, Na+ and K+ in chondroitin sulfate solutions

被引：0
|
作者：
Gunther, T [1 ]
机构：
[1] Free Univ Berlin, Inst Mol Biol & Biochem, D-14195 Berlin, Germany
来源：
MAGNESIUM-BULLETIN | 1998年 / 20卷 / 01期
关键词：
D O I：
暂无
中图分类号：
Q5 [生物化学]; Q7 [分子生物学];
学科分类号：
071010 ; 081704 ;
摘要：
In solutions of chondroitin-4-sulfate with different total Mg2+, Ca2+ and Na+ contents, the concentrations of free Mg2+, Ca2+, Na+ and K+ as well as the pH were simultaneously measured by means of ion-sensitive electrodes, as arranged in Microlyte 6 (Kone, Espoo, Finland). Chondroitin-4-sulfate reduced the concentration (activity) of free ions in the order Ca2+ > Mg2+ > Na+ > K+. The results are discussed with respect to ion binding or reduction of the ion activity coefficient and possible physiological implications.
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页码：8 / 10
页数：3
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