Nonstoichiometric binding of lead(II) ions with sodium alginate

被引：0
|
作者：
Kobak, VV [1 ]
Sutkevich, MV [1 ]
Plashchina, IG [1 ]
Braudo, EE [1 ]
机构：
[1] INST FOOD SUBST,MOSCOW 117813,RUSSIA
来源：
APPLIED BIOCHEMISTRY AND MICROBIOLOGY | 1997年 / 33卷 / 01期
关键词：
D O I：
暂无
中图分类号：
Q81 [生物工程学（生物技术）]; Q93 [微生物学];
学科分类号：
071005 ; 0836 ; 090102 ; 100705 ;
摘要：
The ability of sodium alginate to bind Pb2+ at a ratio of 500 ions per uronide link was established. The residual concentration of Pb2+ in the solution was 4 x 10(-4)-3 x 10(-3) mol 1(-1) and did not depend on the concentration of the reagents (the concentration of sodium alginate was 2 x 10(-4) x 10(-3) g-equiv per 1, the concentration of the ph salt was 0.001-0.5 mol 1(-1)). The binding was found to be reversible, which can be at least partly explained by sorption excess Pb2+ by the gel of Pb alginate formed at the initial step of the process.
引用
收藏
页码：91 / 94
页数：4
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