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

页码：91 / 94

页数：4

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